Physics Kinetic Energy

If you push on an object, you can set it in motion. If an object is moving, then it is capable of doing work. It has energy of motion and that's called _________ ___________.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The kinetic energy of an object depends on the mass of the object as well as its speed.

• false

• true

Tags

NGSS.MS-PS3-1

What is the formula of kinetic energy?

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

If the speed of an object is doubled, its kinetic energy is quadrupled. It takes four times the work to double the speed. When work is done, energy change.

• false

• true

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

In the diagram below, a 5 kg object is moving with a speed of 10 m/s, and a 10 kg object is moving with a speed of 5 m/s. Which object in the diagram has more kinetic energy?

• Both of the objects have the same amount of kinetic energy.

• The 5 kg object has more kinetic energy.

• The 10 kg object has more kinetic energy.

• Neither object has any kinetic energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

The table lists the mass and speed of each of four objects. Which two objects have the same kinetic energy?

• A and D

• B and D

• A and C

• B and C

Tags

NGSS.MS-PS3-1

The kinetic energy of a moving object is different to the work required to bring it to its speed from rest, or the work the object can do while being brought to rest.

• false

• true

Tags

NGSS.MS-PS3-5

Net force x distance = kinetic energy

• false

• true

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

If the speed of an object is doubled, its kinetic energy is quadrupled. It takes four times the work to double the speed. When work is done, energy don't change.

• false

• true

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The moving ball can then hit something and push it, doing work on what it hits.

• false

• true

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5