Test review for Energy and Heat test

1. Let’s begin with some practice from your Interactive Textbook:
1. p. 159, #4
2. p. 160, #5 and #6
3. p. 163, #2
4. p. 164, #4
5. p. 173, #2
6. p. 176, #8
7. p. 179, #1
8. p. 180, #3
9. p. 185, #15 (accelerated only)

2. Describe the girl’s PE and KE as she jumps on a trampoline

3. What is going on in this picture?
Convection
Conduction
Radiation

4. GPE (J) = Weight (N) x Height (m)
1. What is the GPE of a 100N rock on the edge of 50m cliff?
2. How much does a book weigh if it has a GPE of 400J and it
is on a shelf 2m high?
3. What is the height of an object that has GPE of 250J and a
weight of 125N?

5. What energy transformations take
place in a battery-powered
flashlight?

6. GPE (J) = Weight (N) x Height (m)
Determine which object is on the highest shelf
Object Weight (N) GPE (J)
Doll 25 50
Book 10 50
Picture 100 50

7. ACCELERATED:
1. Perform calculations for KE when given a formula
2. Perform a specific heat calculation