Shopping Review and Quiz

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

The potential energy is[___]J.

Revolt · Accepted Answer

14700

Question 3

The shelf is[___]m high.

Revolt · Accepted Answer

2

Question 4

A crane lifts a cargo box 10 m off the ground. If the crane lifts the cargo box twice as high, the potential energy will increase by

Revolt · Accepted Answer

two times.

Question 5

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

Revolt · Accepted Answer

225; Selection 1: 225

Question 6

Boat A and Boat B have the same mass. Boat A’s velocity is three times greater than that of Boat B. Compared to the kinetic energy of Boat B, the kinetic energy of Boat A is

Revolt · Accepted Answer

nine times as much.

Question 7

Position A:[___]

Revolt · Accepted Answer

is all potential; Selection 1: is all potential; Selection 2: is losing potential and gaining kinetic; Selection 3: is all kinetic; Selection 4: is losing kinetic and gaining potential; Selection 5: is all potential

Question 8

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 is[___]J.

Revolt · Accepted Answer

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

Question 9

The diagram shows a person holding a bow and arrow.

Revolt · Accepted Answer

releasing the string

Question 10

Which statements are part of the safety protocol for this lab experiment? Check all that apply.Always wear safety goggles when performing an experiment.Use caution when dropping objects and/or launching them into the air.Use thermal gloves when handling the soda bottle and beanbag.Use only the materials that your teacher provides or approves.Check the soda bottle and its cap for cracks and chips prior to use.Use only carbonated liquids in the soda bottle.Report all accidents—no matter how big or small—to your teacher.

Revolt · Accepted Answer

Always wear safety goggles when performing an experiment.; Use caution when dropping objects and/or launching them into the air.; Use only the materials that your teacher provides or approves.; Check the soda bottle and its cap for cracks and chips prior to use.; Report all accidents—no matter how big or small—to your teacher.

Shopping Review and Quiz Answers

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