2. Energy transfer from one form of energy into another _________________________________ Can be one form to one other form or one form to ___________________ other form

3. Kinetic energy and potential energy is converted back and forth as the pendulum moves

6. ENERGY CONVERSIONS Chemical energy in _________ is converted to ________________energy when you move. _________ energy from the sun is converted into chemical energy by plants

7. ___________________energy is converted to _____________ energy to make the fan move AND into ________________energy to produce heat AND _________________ into energy produced from the movement of air.

8. ENERGY AND MACHINES Machines can make work easier by changing the ________________ or ______________ of the force required Energy transferred to machines can be converted by the machine into other forms of energy

9. ___________________ energy in your body is converted to ____________ energy when your muscles move. _____________ energy in your moving legs is transferred to the pedals.

10. The moving pedals transfer ______________ energy to the gear wheel which transfers kinetic energy to the chain. The chain moves and transfers energy to the back wheel and you move.

11. Fun fact: Only ____ percent of the energy released when burning gasoline is converted to _______________energy to move the car. Most of the rest is converted to _______________energy which is wasted.

12. ENERGY EFFICIENCY Comparison of the amount of energy before a conversion and the amount of energy after the conversion.

13. Energy input is always ______________________________ energy output. The closer the output is to the input, the more _____________________ the conversion is which means there is less energy wasted.