Question

Using Figures 2 and 3, match the following time intervals with the correct descriptions:

0 - 20 seconds

20 - 24 seconds

24 - 26 seconds

26 - 29 seconds

Drag & Drop the answer
The coaster is being lifted up the first hill at a constant speed by the motor. Mechanical energy is being converted to gravitational potential energy.

The coaster slows down as it reaches the highest point in the loop. Approximately half of the energy is gravitational potential energy, and half is kinetic energy.

The coaster briefly stops at the highest point and then accelerates down the hill as gravitational potential energy is converted to kinetic energy.

The coaster completes the loop. When it reaches the bottom, all of its available energy is kinetic. It then travels up the final hill, losing speed as energy is convert

Answer 1

0–20 s — The coaster is being lifted up the first hill at a constant speed by the motor. Mechanical energy is being converted to gravitational potential energy.

20–24 s — The coaster briefly stops at the highest point and then accelerates down the hill as gravitational potential energy is converted to kinetic energy.

24–26 s — The coaster slows down as it reaches the highest point in the loop. Approximately half of the energy is gravitational potential energy, and half is kinetic energy.

26–29 s — The coaster completes the loop. When it reaches the bottom, all of its available energy is kinetic. It then travels up the final hill, losing speed as energy is converted.