Year 9 Physics Q2

2. Material that reduces the transfer of heat or electricity.
5. The ability to do work or cause change, measured in joules.
6. A device that converts fluid flow into mechanical energy.
8. Type of energy associated with motion.
9. A force that opposes motion between two surfaces.
11. The percentage of useful energy output compared to total input.
14. The rate at which energy is transferred or work is done, measured in watts.
15. Transfer of energy through electromagnetic waves, such as sunlight.
16. Type of potential energy stored in stretched or compressed objects.
17. Energy related to the temperature of an object or system.

1. Energy resource that cannot be replaced quickly, like coal or oil.
3. A device that converts mechanical energy into electrical energy.
4. Heat transfer in fluids due to differences in density.
7. The transfer of heat through direct contact between particles.
10. Type of energy resource that can be replenished naturally, like solar or wind.
12. A push or pull acting on an object, measured in newtons.
13. A type of potential energy based on an object’s height.