Potential and Kinetic Energy

Question 1

If a roller coaster train has a potential energy of 1,500 J and a kinetic energy of 500 J as it starts to travel downhill, its total energy is[___]J.

Revolt · Accepted Answer

2,000; If a roller coaster train has a potential energy of 1,500 J and a kinetic energy of 500 J as it starts to travel downhill, its total energy isJ.: 2,000; Once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 J, and its potential energy decreases to J.: 900; When the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isJ.: 2,000

Question 2

500✔ 9001,1002,000

Revolt · Accepted Answer

900

Question 3

5001,1001,500✔ 2,000

Revolt · Accepted Answer

2,000

Question 4

is all kineticis all potential✔ is losing kinetic and gaining potentialis losing potential and gaining kinetic

Revolt · Accepted Answer

is losing kinetic and gaining potential

Question 5

is all kinetic✔ is all potentialis losing kinetic and gaining potentialis losing potential and gaining kinetic

Revolt · Accepted Answer

is all potential

Question 6

⇒ 14,700

Revolt · Accepted Answer

71916

Question 7

⇒ 2

Revolt · Accepted Answer

72168

Question 8

What is the kinetic energy of the ball as it is being thrown?[___]J

Revolt · Accepted Answer

225; Selection 1: 225

Question 9

015130✔ 225

Revolt · Accepted Answer

225

Question 10

Read the scenario and solve these two problems. When traveling at top speed, a roller coaster train with a mass of 12,000 kg has a velocity of 30 m/s. The kinetic energy of the train at top speed isJ. Given this kinetic energy, what is the tallest hill this roller coaster train can reach the top of? The train can climb a hill that ism high.

Revolt · Accepted Answer

5,400,000; Selection 1: 5,400,000; Selection 2: 46

Potential and Kinetic Energy Answers

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