A Science Tek

The kinetic energy of a moving object depends on ___.

• the color of an object
• the mass of the object
• the mass and speed of an object
• the speed of the object

Tags

NGSS.MS-PS3-1

A motorcycle, a car and a bicycle, and a truck are moving at the same speed.  Which one has the least kinetic energy?

• motorcycle
• car
• bicycle
• truck

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

An apple hanging from the branch of a tree falls down.  How does its energy change as it falls?

• The kinetic energy of the apple changes to potential energy.
• The potential energy of the apple changes to kinetic energy.
• The kinetic energy of the apple remains constant.
• The potential energy of the apple remains constant.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Which of these best represents potential energy?

• a marble rolling on flat ground
• water flowing through a pipe
• a spring pressed between two blocks
• wind moving the blades of a windmill

Tags

NGSS.MS-PS3-2

Harry used the energy stored up in his muscles to cycle up a hill.  What happened to this energy when he reached the top?

• The energy stored in Harry's muscles was destroyed when he reached the top of the hill.
• The energy used by Harry returned to his muscles when he reached the top of the hill.
• Kinetic energy changed to potential energy when Harry reached the top of the hill
• Potential energy changed to kinetic energy when Harry reached the top of the hill.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Harry is waiting on top of a water slide while Joshua slides down.  Which of these statements is NOT TRUE?

• Both Harry and Joshua have kinetic and potential energy.
• Only Joshua has kinetic energy and potential energy.
• Joshua has greater kinetic energy.
• Harry has greater potential energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following has the greatest potential energy?

• A
• B
• C
• D

Tags

NGSS.MS-PS3-2

Which of the divers in this picture has the least potential energy?

• A
• B
• C
• D

Tags

NGSS.MS-PS3-2

Which of these has kinetic energy?

• Book on the table
• Rock on top of a hill
• Stationary car
• Moving train

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

At which point will the skater have the least potential energy?

• Point A
• Point B
• Point C
• Point A and C

Tags

NGSS.HS-PS2-4