03.03.2022

How many times should energy-saving lamps be reduced? What percentage of electricity is wasted if the charger

Society

17:08 19.09.2011

GOROBZOR.RU

Visitors to the portal were asked to answer quiz questions and confirm their knowledge in the field of energy saving. The luckiest energy scholar will receive a prize from the competition sponsor - a Certificate for the purchase of finishing materials and furniture at the Raduga-Expo TVC for 10 thousand rubles.

The second stage of the competition, during which the winner will be determined, will take place on September 21 - using a lottery drum, the organizers will randomly select an energy erudite from among those who correctly answered the quiz questions at the first stage. All those who answered the questions correctly will be called by representatives of the organizers and invited to a prize draw.

Now, pay attention! Right answers:

1. How many times can energy-saving lamps reduce energy consumption in an apartment? Answer: 2

Replacing incandescent lamps with modern energy-saving lamps, on average, can reduce electricity consumption in an apartment by 2 times! The cost of their acquisition pays off in less than a year.

A modern energy-saving lamp lasts 10 thousand hours, while an incandescent lamp lasts 6-7 times less. The 11 W compact fluorescent lamp replaces the 60 W incandescent lamp. The costs are recouped in less than a year, and it lasts 3-4 years.

2. What percent of electricity is wasted if Charger For cell phone leave it plugged in? Answer: 3

The habit of leaving equipment in “standby” mode reduces your family budget. Turning off the TV, VCR, or music center from the network will reduce electricity consumption to an average of 300 kW/h per year.

For example, if you watch TV 6 hours a day, then its consumption in standby mode is 297 W/h per day, and almost 9 kW/h per month. Similar calculations for a music center give almost 8 kWh per month, and a VCR - almost 4 kWh per month. The total for just three devices is almost 21 kW/h per month.

Charging device for mobile phone When left plugged in, it heats up, even if the phone is not connected to it. This happens because the device still consumes electricity. 95% of energy is wasted when the charger is always plugged in.

3. The average cost of producing one cubic meter of water is equal to the cost of: Answer: 2

The average cost of producing one cubic meter of water is equal to the cost of producing 1 liter of gasoline.

4. In what year did the presentation of Edison's incandescent lamp take place? Answer: 2

The “presentation” of Edison’s incandescent lamp took place on the eve of 1880. Three thousand people who came to Menlo Park that evening were shocked by what they saw: hundreds of light bulbs glowed with bright light on a wire stretched between the trees.

5. In what year was the energy-saving lamp invented? Answer: 2

For almost the entire 20th century, Edison's lamps did not have a worthy competitor. A breakthrough in household lighting was made only in 1976, when inventor Ed Hammer introduced General Electric is a fundamentally new lamp, which later received the name energy-saving.

6. In what year will the ban on the use of incandescent lamps be imposed in Europe? Answer: 1

In many European countries, the days of incandescent lamps are already numbered. Europeans will completely abandon them in 2012.

7. What types of electricity meters are more profitable to use in everyday life? Answer: 2

The functionality of modern electronic meters allows you to keep track of electricity by day zones and even by seasons. The Regional Energy Commission divided the day into two tariff zones - day (from 7:00 to 23:00) and night (from 23:00 to 7:00) - and set a separate tariff for each. At the same time, the night tariff is significantly lower than the day tariff, which allows the population to reduce electricity costs. The two-tariff metering system is equally beneficial to both subscribers and the power system. This would significantly reduce production costs, as well as delay the commissioning of new generating capacities for some time by reducing electricity consumption during peak hours. This metering system allows you to significantly save on electricity bills if you properly organize the use of certain household electrical appliances.

8. Name the most economical class of household appliances: Answer: 1

Currently, almost all European Appliances has a special Euro sticker indicating the energy saving class.

Class “A” includes the most economical devices. Each energy saving class corresponds to a certain level of energy consumption.

For example, washing machines (according to Samsung).

When loading 1 kg of cotton laundry and a temperature of 95 degrees C:

Class “A” consumes 0.19 kW/h of energy;

With class “B”, 0.19 to 0.23 kW/h of energy is consumed;

With class “C”, 0.23 to 0.27 kW/h of energy is consumed.

9. Which water is easier and faster to remove lime from the floor? Answer: 2

You have to heat water in any home. It’s good, if only for tea, otherwise you still have to heat the water for washing dishes and laundry. Electricity is most often used for this, even in private homes.

Remember that water you do not use will have time to cool before it is needed again, and you will have to heat it again. Besides, it’s unlikely that you need extra steam in the house that you need to pay for? When water is heated on a village stove, advice is also useful.

Use hot water for domestic purposes only where you cannot do without it. Wherever possible, use cold.

For example, hot water washes off grease much better, but if you need to wash off lime from the floor or objects, you can do this easier and faster with cold water. Cold, settled water is also healthier for watering flowers.

10. What percentage of sunlight is absorbed by dirty windows? Answer: 1

Dusty glass can absorb up to 30% of light. Keep them properly clean!

11. A filled dust bag in a vacuum cleaner increases energy consumption: Answer: 3

When using a vacuum cleaner one-third full, the dust collection bag deteriorates suction by 40%, and accordingly, energy consumption increases by the same amount.

12. Scale in an electric kettle increases energy consumption: Answer: 2

Scale is formed as a result of repeated heating and boiling of water and has low thermal conductivity, so water in a dish with scale heats up slowly. As a result, energy losses amount to 20%.

13. If the load is incomplete washing machine excess energy consumption is: Answer: 1

When the washing machine is not fully loaded, the excess energy consumption is up to 10-15%! If the washing program is incorrect - up to 30%.

14. Dishes with a curved bottom can lead to overspending: Answer: 2

If the cookware does not match the size of the electric stove burner, 5-10% of energy is lost. To save energy on electric stoves, you need to use dishes with a bottom that is equal to or slightly larger than the diameter of the burner. Dishes with a curved bottom can lead to excessive energy consumption of up to 40-60%. Use the hotplate for full power should only be used for the time required for boiling. After boiling food, it is advisable to switch to low-temperature cooking mode. When cooking, it is advisable to cover the pan with a lid, since rapid evaporation of water extends the cooking time by 20-30%.

Testing

on the topic "Energy Saving"

(after the thematic lesson “Light in our lives” 12/15/2015)

1. How many times can energy-saving lamps reduce energy consumption in an apartment:

1.5 times

2 times

5 times

2. What percent of electricity is wasted if a cell phone charger is left plugged in?

1) 0%

2) 65%

3) 95%

3. The average cost of producing a cubic meter of water is equal to the cost:

1) mining 1 kg of coal

2) production of 1 liter of gasoline

3) mining 1 kg of gold

4. In what year did the presentation of the Edison incandescent lamp take place:

1) 1814

2) 1880

3) 1924

5. In what year was the energy-saving lamp invented:

1) 1964

2) 1976

3) 2000

6. Name the most economical class of household appliances.

1) "A"

2) "B"

3) "C"

7. Which water is easier, faster and more economical to wash off lime from the floor:

1) hot

2) cold

8. What percentage of sunlight is absorbed by dirty windows?

1) 30%

2) 40%

3) 50%

9. A filled dust bag in a vacuum cleaner increases energy consumption:

1) by 20%

2) by 30%

3) by 40%

10. Scale in the electric kettle increases energy consumption:

1) by 10%

2) by 20%

3) by 30%

11. Washing with a full load of the washing machine saves:

1) 15-20 kWh of energy per month

2) 20-25 kWh of energy per month

3) 25-30 kWh of energy per month

12. Dishes with a curved bottom can lead to overspending:

1) 10-30% electricity

2) 40-60% electricity

3) 50-70% electricity

13. To save energy on electric stoves, you need to use dishes with a bottom:

1) which is equal to or slightly exceeds the diameter of the burner

2) which is equal to or slightly less than the diameter of the burner

3) which is slightly smaller than the diameter of the burner

14. Name the most economical method of drying clothes:

1) in the centrifuge of a washing machine

2) ironing

3) on a rope stretched on the street or in the house

15. What rules must be followed for proper economical washing:

1) choose a washing program not only depending on the material, but also taking into account the contamination

2) carefully consider whether there is a need to wash at more high temperature

3) you need to adhere to both of the above rules

16. Name the most effective way to reduce energy costs when using electric stoves:

1) timely replacement of faulty burners

2) replacing 4-step power regulators with 7-step switches

3) the use of stepless switches

4) turning off the electric stove 5 minutes before the end of cooking

5) cooking in closed containers

17. The refrigerator should be installed:

1) in the warmest place in the kitchen, for example, next to a heating radiator, so that the motor runs without overload;

2) the main thing is close to the outer wall;

3) to the coolest place in the kitchen.

18. Food should be stored in the refrigerator:

1) open so that the cold can envelop them from all sides;

2) closed to reduce evaporation;

3) some products must be stored open in the refrigerator, others must be closed.

19. To improve the natural lighting of rooms in the house, it is recommended to make the walls and ceilings light. The use of diffused light (when reflected from light walls and ceilings) saves:

1) up to 50% energy

2) up to 60% energy

3) up to 80% energy

20. When leaving the room for a short time, should you turn off the lights:

1) yes, definitely

2) no, of course

3) depending on your mood

Answers:

Question 1: How many times can energy-saving lamps reduce energy consumption in an apartment?

Answer: Replacing incandescent lamps with modern energy-saving lamps, on average, can reduce electricity consumption in an apartment by 2 times! The cost of their acquisition pays off in less than a year. A modern energy-saving lamp lasts 10 thousand hours, while an incandescent lamp lasts 6-7 times less. The 11 W compact fluorescent lamp replaces the 60 W incandescent lamp. The costs are recouped in less than a year, and it lasts 3-4 years.

Question 2: What percent of electricity is wasted if a cell phone is left plugged in?

Answer: A cell phone charger left plugged in will become hot, even if the phone is not connected to it. This happens because the device still consumes electricity. 95% of energy is wasted when the charger is always plugged in.

Question 3: The average cost of producing one cubic meter of water is equal to the cost of:

mining 1 kilogram of coal
production of 1 liter of gasoline.
mining 1 kilogram of gold

Answer: The average cost of producing one cubic meter of water is equal to the cost of producing 1 liter of gasoline.

Question 4: In what year did the presentation of Edison’s incandescent lamp take place?

Answer: The “presentation” of Edison’s incandescent lamp took place on the eve of 1880. Three thousand people who came to Menlo Park that evening were shocked by what they saw: hundreds of light bulbs glowed with bright light on a wire stretched between the trees.

Question 5: In what year was the energy-saving lamp invented?

Answer: Throughout almost the entire 20th century, Edison's lamps did not have a worthy competitor. A breakthrough in household lighting was made only in 1976, when inventor Ed Hammer introduced General Electric to a fundamentally new lamp, which was later called an energy-saving lamp.

Question 6: In what year was the ban on the use of incandescent lamps imposed in Europe?

Answer: In many European countries, the days of incandescent lamps are already numbered. Europeans completely abandoned them in 2012.

Question 7: What types of electricity meters are more profitable to use in everyday life:

single tariff
two-tariff
multi-tariff

Answer: Multi-tariff meter

Question 8: Name the most economical class of household appliances:

Answer: “A” In laboratory conditions, household appliances are tested and then their energy consumption is assessed and the corresponding class is assigned from “A+” to the lowest “G”. Accordingly, the most economical household appliances receive an A+ rating, but accordingly are somewhat more expensive than household appliances of other classes since they are cheaper to operate and have more modern units.

Question 9: Which water is easier and faster to wash off lime from the floor:

cold
hot

Answer: Cold. For example, hot water washes off grease much better, but if you need to wash off lime from the floor or objects, you can do this easier and faster with cold water. Cold, settled water is also healthier for watering flowers.

Question 10: What percentage of sunlight is absorbed by dirty windows?

Answer: Dusty glass can absorb up to 30% of light

Question 11: A filled dust bag in a vacuum cleaner increases energy consumption:

by 20%
by 30%
by 40%

Answer: When using a vacuum cleaner, a dust bag that is one-third full impairs suction by 40%, and accordingly, energy consumption increases by the same amount.

Question 12: Scale in the electric kettle increases energy consumption...

On 10%
By 20%
By 30%

Answer: Scale is formed as a result of repeated heating and boiling of water and has low thermal conductivity, so water in a vessel with scale heats up slowly. As a result, energy losses amount to 20%.

Question 13: When the washing machine is not fully loaded, the excess energy consumption is:

10 – 15%
20 – 25%
25 – 30%

Answer: When the washing machine is not fully loaded, the excess energy consumption is up to 10-15%!

14 Question: Dishes with a curved bottom can lead to overspending:

10 – 30% energy
40 – 60% energy
50 – 70% energy

Answer: Dishes with a curved bottom can lead to excessive energy consumption of up to 40-60%.

Question 15: Which sources last longer?

Incandescent lamp
Fluorescent Lamp
LED lamp

Answer: LED lamp

Question 16: What is the maximum number of hours that an LED lamp can last?

10,000 hours
30,000 hours
50,000 hours

Answer: 50,000 hours

Question 17: Losses through old-style windows are:

more than 10%
more than 20%
over 30%
more than 40%
more than 50%

Question 18: Is it true that LED and incandescent lamps do not contain mercury, but fluorescent lamps do?

right
wrong
none of the lamps contains mercury
all lamps contain mercury

Answer: Correct. All fluorescent lamps contain mercury (in doses from 1 to 70 mg), a class 1 toxic substance. In this regard, fluorescent lamps must be disposed of after use.

Question 19: The most significant disadvantage of solar panels:

Dependency on weather conditions
Necessity additional installation energy converters
Probability of rapid contamination

Answer: Dependence on weather conditions For the solar battery to function, a sufficient number of sunny days is necessary. This condition does not allow the use of this energy source in those areas of the Earth where the number of cloudy days is high. And at night, energy is not generated.

Question 20: One of the sources of “energy” is:

Carbon dioxide

High-yield crops and plants

Answer: High-yield crops and plants

Recovery days!

We are living in the days of restoration!
Acts 3:21 promises us that before Jesus comes, God will bring about a great restoration on earth. This will be the time when God, in the truest sense of the word, will restore everything! And this is also a Jewish concept! Jews believe in a future time when the entire universe will be restored. The Hebrew word for this restoration of all things is Tikkun Ha Olam! I believe this time of restoration has already begun!

Part of this is seen in the revival of Messianic Judaism. God is leading the Jews to their Messiah! But God also wants to see His church revived! God's presence cannot dwell in a church filled with paganism! He calls on the church to return to its roots. He restores our lost heritage! He is calling His church to BECOME “One New Man” as Jews and Gentiles enjoy the riches of God's New Covenant together!

In Ephesians 5, God portrays the Church as the bride of Christ. It also promises that in preparation for His coming, God will do incredible work to prepare His bride! God will wash her with the Word and cleanse her so that He can present her to Himself as a glorious bride without spot or wrinkle.
I believe we are living in the days when what is written in this passage will be fulfilled. God is preparing His bride! He is restoring His CHURCH!

I believe that we will see the church rise in power and glory that we have not seen since the 1st century. It will be nothing like the church we knew. And many people from the traditional churches will be the first to oppose it. But for those who thirst for God, this will be the fulfillment of their deepest longings!

We are living in some of the most wonderful days in all of history! The power of God is restored! His Spirit is poured out! God is inviting YOU to join the restoration process!
Let God bring you back to your ROOTS!
Let God bring you back to His PRESENCE!
THE MESSIANIAN CHURCH is back!

Should you leave your cell phone device plugged in?

3 . The average cost of producing one cubic meter of water is

cost:

A. mining 1 kg of coal

B. producing 1 liter of gasoline

C. extraction 1 kg. gold

4. In what year did the presentation of Edison’s incandescent lamp take place:

5. In what year was the energy-saving lamp invented:

6. In what year will the ban on the use of incandescent lamps be imposed in Europe:

7. What types of electricity meters are more profitable to use in everyday life:

A. single tariff

B. two-tariff

C. three-tariff.

8. Name the most economical class of household appliances:

9. Which water is easier and faster to wash off lime from the floor:

A. hot

B. cold

10. What percentage of sunlight is absorbed by dirty windows:

11. A filled dust bag in a vacuum cleaner increases energy consumption:

12. Scale in the electric kettle increases energy consumption:

13. If the washing machine is not fully loaded, the excess energy consumption is:

14. Dishes with a curved bottom can lead to overspending:

A. 10-30% electricity

B. 40-60%. electricity

C. 50-70% electricity

15. What wallpaper should be preferred during renovation in order to reduce energy consumption?

A. Red

B. Washable

C. Light

D. Green

16. Which displays and types of TVs should be preferred in terms of energy saving?

A. with cathode ray tube

B. With LCD display

C. With plasma screen

D. All three types are practically equivalent in power

for schoolchildren in grades 6-8

QUESTIONS:

1. In what year did the presentation of Edison’s incandescent lamp take place:

A) 1814 B) 1880

2. What percent of electricity is wasted if a cell phone charger is left plugged in?

A) 1964 B) 1976

6. In what year will the ban on the use of incandescent lamps be imposed in Europe:

A) 2012 B) 2015

7. If you place a refrigerator in a room where the temperature reaches 30 degrees, then energy consumption will: A) double B) decrease

8. Name the most economical class of household appliances:

A) "A" B) "C"

9. What percentage of sunlight is absorbed by dirty windows:

A) 30% B) 50%.

10. A filled dust bag in a vacuum cleaner increases energy consumption:

A) by 70% B) by 40%.

11. Scale in the electric kettle increases energy consumption:

A) by 50% B) by 20%

–A) from the Moon – B) from the Sun – from wires

2. You will need 1 kWh of energy to:

A) Leave a 60 W lamp on for 17 hours B) Watch color TV for 12 hours

3. Which water requires the most energy?

A) rain water B) warm water

4. If each of your four family members leaves the water tap open for only 5 minutes a day, you waste: A) 7 kWh of energy B) 1 kWh of energy

5. What does an incandescent lamp mainly produce?

A) light – B) energy

6. Taking a bath (140-180 l) you spend three times more energy than taking:

A) 5-minute shower B) 10-minute shower

7. What has a greater impact on energy consumption when watching TV?

A) location - B) screen size

8. What is not yet made from recycled paper?

A) school notebooks – B) money

9. Enormous heat losses occur in enterprises, heated warehouses, and hangars through doorways when cars enter and exit. What to do?

A) place a special employee at the gate B) close the door behind you?

contribute to the education of environmental consciousness in children;

promote the development of environmentally sustainable and safe lifestyle skills;

drawing attention to the problems of energy use, saving energy and energy resources, environmental protection;

creating motivation to save resources and energy;

involve schoolchildren in useful activities for energy and resource conservation;

4.Ways to save energy

Energy saving lamp: new century - new light

1. Use of advanced lighting technology (energy-saving lamps, lighting systems).

Advantages of energy saving lamps:

1) They consume 5 times less electricity than LN, with the same light output.

4) Fireproof.

Allows you to save up to 80% of electricity. Economical use of lighting. After observation, I found out that a multi-lamp chandelier on the ceiling provides illumination of the entire room, but leads to unwanted shadow formation when working at a desk, a sewing machine, or in a corner with toys.

LED lamps LED lamps are the absolute leader in light quality, safety and energy saving. Energy savings reach 50% compared to fluorescent lamps and 90% compared to simple incandescent lamps.

The LED lifespan reaches 50,000 hours, which is 100 times longer than an incandescent lamp and 10 times longer than a compact fluorescent lamp. The LED is durable and resistant to mechanical stress and vibration. LED lamp, unlike fluorescent lamps, does not contain mercury and other harmful substances and does not require any special destruction after use, does not flicker like a fluorescent lamp. In addition, the LED is a low-voltage electrical device that hardly heats up, which means it is electrically and fireproof.
When using natural resources, think about what will happen tomorrow. Will it even be “TOMORROW”? Today our planet is on the verge of an environmental catastrophe and its most dangerous harbinger is the greenhouse effect. It is caused by an increase in the content of carbon dioxide in the atmosphere, which is formed in huge quantities when fuel is burned. The same fuel that is used to provide our apartments with light, heat and water. This means that the fate of our planet depends on each of us, on all of humanity, or rather, on how much we consume natural resources!

Quiz "Energy erudite".

1. How many times can energy-saving lamps reduce energy consumption in an apartment:

2. What percent of electricity is wasted if a cell phone charger is left plugged in?

3. The average cost of producing one cubic meter of water is equal to the cost:

mining 1 kg of coal

production of 1 liter of gasoline

mining 1 kg of gold.

4. In what year will the ban on the use of incandescent lamps be imposed in Europe:

5. What types of electricity meters are more profitable to use in everyday life:

single tariff

two-tariff

three-tariff.

6. Name the most economical class of household appliances:

7. Which water is easier and faster to wash off lime from the floor:

cold.

8. What percentage of sunlight is absorbed by dirty windows:

9. A filled dust bag in a vacuum cleaner increases energy consumption:

10. Scale in the electric kettle increases energy consumption:

11. If the washing machine is not fully loaded, the excess energy consumption is:

12. Dishes with a curved bottom can lead to overspending:

10-30% electricity

40-60%. electricity

50-70% electricity

RIGHT ANSWERS:

Question No. 1

Question No. 2

The habit of leaving equipment in standby mode reduces your family budget. Turning off the TV, VCR, or music center from the network will reduce electricity consumption to an average of 300 kWh per year.

Reducing consumption is not so much a matter of technology as it is of awareness and motivation to reduce wasted energy. In addition to using hot water from the tap, we heat water when cooking. Most dishwashers and washing machines usually heat their own water using electric heaters. This process can also often be improved in terms of energy consumption.

Classroom teacher: Guys, what can be done in this case to save energy? (STUDENTS' ANSWERS)

Teacher: Clever girls! Then let's formulate with you the rules by which you can use water correctly. (STUDENTS' ANSWERS)

1. Hot water is mainly used for washing, showering, bathing, washing dishes, washing floors, and doing laundry. Be careful not to use more hot water than necessary for this purpose.

2. Changing habits is often difficult, but you need to evaluate your hot water consumption and see if there is a way to reduce it. You can save hot water by reducing either the water flow or its temperature. Stop letting water flow unnecessarily and fix leaky taps. Washing large quantities of dishes under running hot water uses a lot of energy.

3. Don't leave the water running while you brush your teeth. A short shower uses less water than filling a bathtub. But the shower can also be improved. Special energy-saving shower heads consume less than 10 l/min, while providing a comfortable shower. Perhaps you should measure the water flow in your shower.

Classroom teacher: Let's give the floor to the third speaker with a report on the topic “Electricity”.

Electricity

In industrialized countries, 30 to 50% of electricity is spent on electrical appliances and installations. residential buildings and the service sector. You can see from the electricity bills you pay that this type of energy is relatively expensive. Therefore, when purchasing consumer electronics, be sure to pay attention to the energy consumption, compare different models and manufacturers, and choose the least energy-intensive model. The use of modern energy-saving electrical appliances allows you to achieve such energy savings that it is hard to believe at first! Specifically for the types of electrical household appliances, energy savings are estimated as follows: refrigerators and freezers – up to 80%; washing machines – from 4 to 10 times; TVs - from 30 to 50%. Impressive, isn't it? People need light to work. We are originally designed to be active during daylight hours and sleep at night. In modern society, activities continue 24 hours a day, and we spend a lot of time inside buildings, where daylight. The need for additional artificial lighting for short periods is especially great. winter days in the northern regions.. Lighting is one of those energy applications where it really pays to use high quality electrical energy, but here daylight can be used in combination with artificial lighting. In the average family, approximately half of the electricity consumed is spent on lighting.

Classroom teacher: Guys, what can you do to save energy? (RESPONSES OF PUPILS)

Classroom teacher: Fine! Then let's formulate with you the rules by which you can save electricity. (RESPONSES FROM PUPILS)

1. Turn off the lights when not needed.

2. Use energy efficient light bulbs. The energy you previously used for one light bulb will be enough for five new light bulbs.

3. Sometimes it is better to change the lampshade than to install it additional lighting.

We obtain the necessary energy from energy sources, which can be renewable or non-renewable. Non-renewable sources are becoming fewer and fewer. Renewable sources will exist as long as the Sun shines and the Earth exists, but they are clearly underutilized and cannot yet meet the energy needs of modern humanity.

When we use energy to do useful work, some of it inevitably turns into heat and is ultimately wasted to heat the Universe. We cannot return her from there. In this sense, we can say that part of the energy is lost to us. These are quantitative losses. When transporting energy from source to consumer, a considerable amount of energy is also lost.

When energy is converted from one form to another, its overall quality decreases. These are qualitative losses. As we consume more and more energy, we consequently lose more and more of it. So you can, in the end, lose it all! We are far from the first generation living on Earth and, hopefully, far from the last. But if our predecessors could not think about the consequences of their activities, then we cannot afford this. Rapidly growing energy consumption has not only depleted non-renewable natural resources, but has also caused such damage to nature that it sometimes becomes uninhabitable. It's time to think: who are we on Earth and what will we leave behind? Mountains of waste and bare ashes, like careless tourists on a picnic, or, like zealous owners, a comfortable house with everything necessary for the life of our descendants?

An active energy saving policy can significantly reduce the consumption of non-renewable energy sources and minimize pollution environment. These are not nice words; there are specific examples of successful application of energy-saving technologies in the world. It is important to understand that it is necessary to implement energy saving policies at all levels of society - from the United Nations and national governments to every citizen.

IV. Reflection

On the board are drawings of light bulbs in three colors: white, yellow, red.

Classroom teacher: If you agree with the words spoken, then go to the green light bulb. If you think that adults should think about energy saving, not you, then go to the yellow light bulb. And if you think that there is no need to save energy at all, then go to the red light bulb.

Please listen to the words of the authors of the “Factor Four” report: “A book cannot change the direction of progress. This must be done by people - consumers and voters, managers and engineers, politicians and journalists. People do not change their habits unless there is sufficient reason to do so. The ecological state of the world requires immediate action. Otherwise, the world may face unprecedented troubles and disasters.”

Guys, I think you remember how to save energy. Tell your parents, relatives and friends.

Now it's up to you!

Guys, now I ask you to leave your feedback on the class hour.

Analysis class hour

Class hour , dedicated "Energy saving at home" carried out on November 14, 2016

9-A class

Classroom teacher – Gladkaya Maya Alexandrovna

Target: attracting children's attention to the problems of energy use, energy saving and energy resources.

Tasks:

· contribute to the development of environmental consciousness among students;

· promote the development of environmentally sustainable and safe lifestyle skills;

· creating motivation to save resources and energy:

· involve students in useful activities on energy and resource conservation;

stimulate interest in scientific research and practical application of knowledge acquired at boarding school

1. Space heating

2. Use of water

3. Electricity

4. Cooking

5. Consumption and secondary processing

Already in the preparatory period, the pupils were imbued with an understanding of the need and significance of the upcoming activity. Both during the preparation and during the event itself, the students showed composure, responsibility and discipline, which is not always something you can achieve from a class in another setting.

The work during the class hour was meaningful, interesting and organized.

During the seminar, students gave their reports on the topic of energy saving, at the end of which they asked the problematic question “What can be done to save energy?” And the guys answered this question with pleasure, justifying their answer.

At the end of the class hour there was a reflection. Based on the results of the reflection, it turned out that the guys agree with the words of the authors of the “Factor Four” report: that people must change the direction of progress, that the ecological state of the world requires immediate action, that they must take simple measures to save energy.

The goal of the class hour was achieved. The problems have been solved.

GOROBZOR.RU

Now, pay attention! Right answers:

1. How many times can energy-saving lamps reduce energy consumption in an apartment? Answer: 2

Replacing incandescent lamps with modern energy-saving lamps, on average, can reduce electricity consumption in an apartment by 2 times! The cost of their acquisition pays off in less than a year.

2. What percent of electricity is wasted if a cell phone charger is left plugged in? Answer: 3

A cell phone charger left plugged in will become hot, even if the phone is not connected to it. This happens because the device still consumes electricity. 95% of energy is wasted when the charger is always plugged in.

3. The average cost of producing one cubic meter of water is equal to the cost of: Answer: 2

The average cost of producing one cubic meter of water is equal to the cost of producing 1 liter of gasoline.

4. In what year did the presentation of Edison's incandescent lamp take place? Answer: 2

5. In what year was the energy-saving lamp invented? Answer: 2

For almost the entire 20th century, Edison's lamps did not have a worthy competitor. A breakthrough in household lighting was made only in 1976, when inventor Ed Hammer introduced General Electric to a fundamentally new lamp, which was later called an energy-saving lamp.

6. In what year will the ban on the use of incandescent lamps be imposed in Europe? Answer: 1

In many European countries, the days of incandescent lamps are already numbered. Europeans will completely abandon them in 2012.

7. What types of electricity meters are more profitable to use in everyday life? Answer: 2

8. Name the most economical class of household appliances: Answer: 1

Currently, almost all European household appliances have a special Euro sticker indicating their energy saving class.