# Energy

> Grade 6: forms of energy, energy changes, renewable and non-renewable, saving energy.

Source: https://olyclass.com/library/science-g6-energy-en/

- Subject: Science
- Level: Grade 6
- Quiz: 16
- Play it free on one screen (projector, TV or whiteboard): https://olyclass.com/library?play=science-g6-energy-en
- Copy and edit it: https://olyclass.com/library?copy=science-g6-energy-en

## Questions

1. Which form of energy is stored in a stretched rubber band? (Elastic potential energy / Nuclear energy / Sound energy / Thermal energy)
   Answer: Elastic potential energy
2. A moving bicycle has which form of energy? (Chemical energy / Elastic energy / Gravitational energy / Kinetic energy)
   Answer: Kinetic energy
3. Sound is a form of energy that is made by vibrations.
   Answer: True
4. Which form of energy is stored in food and batteries? (Chemical energy / Kinetic energy / Light energy / Sound energy)
   Answer: Chemical energy
5. What energy change happens in a light bulb? (Chemical to sound / Electrical to light and heat / Heat to kinetic / Light to electrical)
   Answer: Electrical to light and heat
6. A solar panel mainly changes light energy into which form? (Chemical energy / Elastic energy / Electrical energy / Sound energy)
   Answer: Electrical energy
7. A ball falls from a table. Which stored energy changes into kinetic energy?
   Answer: Gravitational potential energy
8. Energy can be created from nothing, for example in a power station.
   Answer: False
9. Which of these is a non-renewable energy source? (Coal / Moving water / Sunlight / Wind)
   Answer: Coal
10. Which energy source will not run out because it keeps being replaced? (Coal / Natural gas / Oil / Wind)
   Answer: Wind
11. Why is burning fossil fuels a problem for the air? Name the gas that increases.
   Answer: Carbon dioxide
12. Why are fossil fuels called non-renewable? (They are always very expensive / They cannot be burned / They only exist in space / They take millions of years to form)
   Answer: They take millions of years to form
13. Which action is a good way to save electricity at home? (Leaving the TV on standby / Opening the fridge often / Switching off lights in empty rooms / Using a bigger bulb)
   Answer: Switching off lights in empty rooms
14. Good insulation in a house helps to save heating energy.
   Answer: True
15. In a wind turbine, what is the useful energy change? (Chemical to light / Electrical to kinetic / Heat to sound / Kinetic to electrical)
   Answer: Kinetic to electrical
16. Name the unit used to measure energy.
   Answer: Joule