Mechanical Energy

What has to be true about an object for it to have kinetic energy?

• it must be moving

• it must be elevated

• it must be experiencing a net force

• it must be accelerating

What energy do you produce riding your bike? __________

• Sound Energy
• Mechanical Energy
• Light Energy
• Electrical Energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

When does an object have no kinetic energy?

• when it is at rest
• when it is moving very slowly
• when the only force that is acting on it is gravity
• when it has no electrical charge

What is energy?

• The pivot point allowing a lever to move

• A push or a pull

• Measurement of weight

• The ability to move or allow something to move

What is an example of potential energy?

• A book sitting on a shelf

• A car moving down the highway

• A person playing basketball

• Both B and C

Tags

NGSS.MS-PS3-2

To make things move, you need a −

• force.
• strong magnet.
• metal object.
• helper.

Tags

NGSS.MS-PS2-2

A force is a −

• push.
• pull.
• magnet.
• push or pull.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

This girl has jumped up in the air. What force will cause her to come back to the ground?

• Gravity
• Magnetism
• Electricity
• Sound

Gravity is a force that ─

• pulls objects down.
• pulls objects toward the center of the Earth.
• pushes objects into the air.
• has no effect on objects.

Tags

NGSS.5-PS2-1

At point 1, what is the gravitational potential energy (GPE)?

• 4 J

• 50 J

• 200 J

• 1960 J

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2