Energy Transformations in Skating

When does the skater have only kinetic energy?

• At the tops of the ramp

• At the bottom of the ramp

• When moving down the ramp

• When moving up the ramp

When does the skater have only potential energy?

• At the tops of the ramp

• At the bottom of the ramp

• When moving down the ramp

• When moving up the ramp

Pay close attention to Total Energy (Mechanical Energy). What is happening?

• It stays the same

• It is always the same as potential energy

• It is always the same as kinetic energy

• It is increasing and decreasing

What happens to potential energy as the skater moves down the ramp?

• It increases

• It decreases

What happens to kinetic energy as the skater moves down the ramp?

• It increases

• It decreases

Which of the following best describes what happens to energy?

• As you lose kinetic energy, you gain new potential energy

• As you gain kinetic energy, you gain new potential energy

• As you move down the ramp, kinetic energy is transformed into potential energy

• As you move down the ramp, potential energy is transformed into kinetic energy

What eventually happens to the skater?

• She speeds up

• She stays at a constant speed

• She slows down

• She stops immediately

What did you notice happening to thermal energy as the skater stopped?

• It decreased

• It increased

• It stayed the same

• It transformed into kinetic energy

What happened to total energy?

• It stays the same

• It is always the same as potential energy

• It is always the same as kinetic energy

• It is increasing and decreasing

At what position do you have the most potential energy?

• 1

• 3

• 5

• 7