# Homework: Energy Skate Park https://phet.colorado.edu/sims/html/energy-skate-park-basics/latest/energy-skate-park-basics_en.html

Homework: Energy Skate Park
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Answered 1 days AfterApr 02, 2022

## Solution

Dr Shweta answered on Apr 03 2022
Homework: Energy Skate Park
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Question 1
1. I saw the small ball fall = Evidence
2. 2. It started up high standing still and then I let go of it = Claim
3. It started moving and eventually hit the ground = claim
4. The Ball’s kinetic energy went up = claim
5. Because speed is directly related to the amount of kinetic energy = Reasoning
6. I know that the energy had to come from somewhere because the ball received energy from something = writing to improve flow
7. Gravity pulls downward on objects = Reasoning

8. And the ball fell = Evidence
9. So, the force causing it to change must have been gravity = Reasoning
10. But where did the energy come from? = writing to improve flow
11. It came either from the Earth or the object itself = Claim
Question 2
Answer: No, the height of the total energy bar graph doesn’t change.
Explanation: We observe from the bar graph of skater moving on the ramp that the total energy of the skater remains constant and the height of the total energy Bar -graph doesn’t change. While Kinetic energy and potential energy changes with the position of the Skater i.e., with height of the ramp and so the height of kinetic energy and potential energy bar graph changes.
At top point of the ramp his height is maximum and as potential...
SOLUTION.PDF