Grade 1 Environmental – Sources of light energy and conservation Quiz

1. Light helps us to

Hear
See
Taste
Eat
Explanation:

2. When there is no light, we have

Darkness
sunlight
moon
stars
Explanation:

3. Things that produce light are called

Sources if light
stars
moon
Torch
Explanation:

4. Which one is not a natural source of light?

Star
Sun
Candle
Moon
Explanation:

5. Natural sources of light are made by

Moon
Man
God
Teacher
Explanation:

6. Artificial sources of light are made by

Teacher
Mother
God
Man
Explanation:

7. Which of the following is not an artificial source of light?

Candle
Electricity
Torch
Moon
Explanation:

8. The main source of light is

Torch
Sun
stars
moon
Explanation:

9. When light is not in use we should

Leave it
Disconnect
Play with it
Switch off
Explanation:

10. Clothes dry faster on a ___ day

windy
calm
sunny
rainy
Explanation:

11. During the day, we see___ on the sky

Clouds
stars
moon
rain
Explanation:

12. Moving air is called

Stars
Sun
Wind
Rain
Explanation:

13. Lack of rain for a long time is causes

wind
clouds
rain
drought
Explanation:

14. People drink a lot of water on a___ day

Windy
Sunny
Calm
Rainy
Explanation:

15. When walking in the darkness we use___ to give is light

Sun
Fire
Torch
Moon
Explanation:

16. What is the main source of light energy at home and school?

Geothermal energy
Wind energy
Electricity
Solar energy
Explanation:

Electricity is the main source of light energy at home and school as it powers light bulbs and lamps.

17. Which of the following is a renewable source of light energy?

Sunlight
Petroleum
Natural gas
Coal
Explanation:

Sunlight is a renewable source of light energy that can be used through solar panels to generate electricity.

18. What should you do to conserve light energy?

Leave all lights on when not in use
Keep lights on during the day
Use more energy than needed
Switch off lights when leaving a room
Explanation:

Switching off lights when leaving a room helps conserve light energy and reduce electricity usage.

19. Which of these actions helps in conserving light energy?

Replacing incandescent bulbs with LED bulbs
Leaving lights on all night
Keeping curtains closed during the day
Using multiple lights in one room
Explanation:

Replacing incandescent bulbs with LED bulbs can help conserve light energy as LED bulbs are more energy-efficient.

20. What can be done to reduce light energy consumption at home?

Use high wattage light bulbs
Keep lights on even when no one is in the room
Use natural light whenever possible
Install more lights in every room
Explanation:

Using natural light whenever possible can help reduce light energy consumption at home and save on electricity usage.

21. Why is it important to conserve light energy?

To reduce greenhouse gas emissions
To decrease natural light
To increase electricity bills
To waste energy
Explanation:

Conserving light energy can help reduce greenhouse gas emissions and contribute to a more sustainable environment.

22. Which type of bulbs are more energy-efficient and suitable for conserving light energy?

LED bulbs
Halogen bulbs
Incandescent bulbs
CFL bulbs
Explanation:

LED bulbs are more energy-efficient and suitable for conserving light energy as they consume less electricity and have a longer lifespan.

23. What can you do to conserve light energy when studying at night?

Use a reading lamp with an LED bulb
Keep all lights on in the room
Leave the door open to let light from other rooms come in
Use high wattage bulbs
Explanation:

Using a reading lamp with an LED bulb can help conserve light energy when studying at night as it provides focused light with lower energy consumption.

24. What activity does not contribute to conserving light energy?

Using natural light whenever possible
Switching off unused lights
Leaving lights on all day
Using energy-efficient light bulbs
Explanation:

Leaving lights on all day does not contribute to conserving light energy and leads to unnecessary electricity usage.

25. How can you reduce light energy consumption during the day?

Use only artificial lighting
Keep all doors and windows closed
Switch off lights in rooms with natural light
Keep curtains closed all day
Explanation:

Switching off lights in rooms with natural light and using daylight can help reduce light energy consumption during the day and save electricity.

26. What is the best source of light energy for conserving electricity at home in Kenya?

Electric bulbs
Torches
Solar lamps
Candles
Explanation:

Solar lamps are the best option for conserving electricity because they use sunlight, a renewable source of energy.

27. Which of the following is an example of a renewable source of light energy?

Coal
Firewood
Sunlight
Petroleum
Explanation:

Sunlight is a renewable source of light energy because it comes from the sun, which is constantly available.

28. How can we conserve light energy at school?

Keep windows closed during the day
Leave lights on when not needed
Use energy-efficient light bulbs
Use more candles
Explanation:

Using energy-efficient light bulbs helps conserve light energy by reducing electricity consumption.

29. What is the main benefit of conserving light energy at home and school?

Reduced environmental impact
Brighter rooms
Increased electricity bills
More pollution
Explanation:

Conserving light energy helps reduce the environmental impact by lowering electricity consumption and carbon emissions.

30. Which type of light source consumes the most energy?

LED lights
Incandescent bulbs
Halogen lamps
Fluorescent tubes
Explanation:

Incandescent bulbs consume the most energy compared to other types of light sources, making them less energy-efficient.

31. What is the purpose of using natural light during the day?

To waste energy
To reduce the need for artificial lighting
To create a darker environment
To increase electricity bills
Explanation:

Using natural light during the day helps reduce the need for artificial lighting, conserving electricity.

32. Which activity helps in conserving light energy at school?

Using motion sensor lights
Keeping curtains closed all day
Leaving all lights on overnight
Using only traditional light bulbs
Explanation:

Using motion sensor lights helps conserve light energy by only turning on when needed, reducing unnecessary electricity usage.

33. What should you do to conserve light energy when leaving a room?

Keep all lights on
Turn off all lights
Open all curtains
Use more lamps
Explanation:

Turning off all lights when leaving a room helps conserve light energy by reducing unnecessary electricity consumption.

34. How can you reduce light energy consumption during the day?

Use candles instead of electric lights
Draw curtains and switch on all lights
Open curtains and use natural light
Use more artificial lighting
Explanation:

Opening curtains and using natural light instead of artificial lighting helps reduce light energy consumption during the day.

35. Which of the following is a non-renewable source of light energy?

Solar-powered lights
Kerosene lamps
Wind-powered lights
Geothermal lights
Explanation:

Kerosene lamps use a non-renewable source of fuel, making them a non-renewable source of light energy.