Dekalb Reads Assignment  9.3 A

What is Energy ?

1. What is lightning and thunderclap?
2. Name the forms of energy used to power things in our world.
3. What happens to energy when work is done?
4. How will you define energy?
5. Energy is measured in ___________________.
6. What other quantity is measured in Joules? (Use your memory)
7. When nothing is happening to an object, does it still possess energy?
8. When can energy be observed?
9. How can you measure the energy transferred from slingshot?
10. What is energy?
11. ___________ and ____________ are expressed in the same nits – Joules.
12. Potential energy is _________________.
13. Potential energy is sometimes called ____________________.
14. What is elastic potential energy?
15. Define gravitational potential energy.
16. Define potential energy.
17. Gravitational potential energy depends on both ______________ and _______________,
18. Write down the equation for gravitational potential energy.