
A little girl goes back and forth on a swing. Which of the following is true?
These two cars are exactly alike, except the blue car is going faster. Which of the following is true?

If these two cars were going the same speed, which would have less kinetic energy and why?
Work is being done as a woman pushes on and moves a table. Which of the following is true?
A roller coaster car is standing still, and stuck at the top of the track. Which of the follwing is true?
A rubber band is stretched out and held above the ground. Which of the following is true?

Where is there a lot of potential energy?