1. Do you think the Skater will make it over the first hump
Do you think the Skater will make it over the first hump? (No friction on the track)
No, because his potential energy will be converted to thermal energy
No, because he doesn’t have enough potential energy
Yes, because all of his potential energy will be converted to kinetic energy
Yes, because some of his energy will be potential and some kinetic

2. 2. Do you think the Skater will make it over the first hump
2. Do you think the Skater will make it over the first hump? (with track friction)
No, because his potential energy will be converted to thermal energy
No, because he doesn’t have enough potential energy
Yes, because all of his potential energy will be converted to kinetic energy
Yes, because some of his energy will be potential and some kinetic

3. 3. Do you think the Skater will make it over the first hump
3. Do you think the Skater will make it over the first hump? (No friction on the track)
No, because his potential energy will be converted to thermal energy
No, because he doesn’t have enough potential energy
Yes, because all of his potential energy will be converted to kinetic energy
Yes, because some of his energy will be potential and some kinetic

4. 4. Do you think the Skater will make it over the first hump
4. Do you think the Skater will make it over the first hump? (with track friction)
No, because his potential energy will be converted to thermal energy
Yes, if not too much energy is converted to thermal
Yes, because all of his potential energy will be converted to kinetic energy
Yes, because some of his energy will be potential and some kinetic

5. 5. If in the next moment, the KE piece of the pie gets larger, then
The Skater is going up hill (left)
The Skater is going down hill (right)
There is no way to tell

6. 6. In the next moment, the KE piece of the pie gets larger, then
The PE part stays the same
The PE part gets larger too
The PE part gets smaller
There is no way to tell

7. 7. In the next moment, the KE piece of the pie gets larger, then
The Skater will be going faster
The Skater will be going slower
There is no way to tell

8. 8. The dotted line on the chart shows the energy of the Skater, where could she be on the track?

9. 9. The bar graph shows the energy of the Skater, where could she be on the track?

10. 10. The pie graph shows the energy of the Skater, where could she be on the track? Explain your answer… A B C D E KE PE

11. 11. If the ball is at point 4, which chart could represent the ball’s energy?KE PE A. B. C. D. 2 1 3 4

12. 12. If a heavier ball is at point 4, how would the pie chart change?KE
No changes
The pie would be larger
The PE part would be larger
The KE part would be larger PE 2 1 3 4

13. 13. As the ball rolls from point 4, the KE bar gets taller
13. As the ball rolls from point 4, the KE bar gets taller. Which way is the ball rolling?
At Next step 2 1 3 4 Up
Down
not enough info

14. 14. The Energy chart of a boy skating looks like this
How would you describe his speed?
He is at his maximum speed
He is stopped
He is going his average speed
He is going slow
He is going fast

15. 15. The Energy chart of a boy skating looks like this
How would you describe his speed?
He is at his maximum speed
He is stopped
He is going his average speed
He is going slow
He is going fast

16. 16. Select a letter for each: stopped, slow and fastB A

17. Energy vs Position
17. Sketch this energy position graph. Label where the 5 spots, A-E, could be PE KE
He is going his maximum speed
He is stopped
He is going his average speed
He is going slow
He is going fast