Across
- 3. photovoltaics: a new generation of flexible and cheap solar cells made from carbon-based materials
- 4. energy a measure of the total kinetic energy possessed by particles in a substance
- 7. braking vehicle braking system that stores some of the kinetic energy of a car as it slows down and uses this energy to power the car
- 9. energy energy stored within a substance such as fuel or food that may be released when the substance is burnt or digested
- 10. material added into ceilings and between the walls of a house to reduce heat transfer
- 12. energy form of energy that is visible, such as that produced by the Sun
- 14. energy energy stored inside an atom
- 16. energy energy that causes charged particles to move
- 17. energy energy that travels as vibrating waves and can be heard by our ears as sound
Down
- 1. energy stored energy possessed by an object, such as elastic potential energy of a squashed spring
- 2. rating label: a label showing a number of stars (usually from 1 to 6), which can be used to compare the energy efficiency of different appliances
- 5. potential energy stored energy of an object that is held above the Earth's surface
- 6. House Energy Rating Scheme: a scheme that uses computer simulations to provide a star rating (to a maximum of 10 stars) to houses based on the effectiveness of the external walls against heat loss
- 8. energy energy possessed by a moving object
- 11. (J) unit of measurement for energy
- 13. this is done whenever an object is moved or is forced to change shape
- 15. potential energy energy stored within a stretched or compressed object, like a spring or elastic material