8d/Sc1 Forces End of Topic Test

A force is a _____

• push

• pull

• Both push and pull

• Object

When we throw anything in air it always falls down because of _____

• Friction

• Gravity

• Solid

• motion

Tags

NGSS.MS-PS2-4

If negative charge is developed on two objects they will__

• attract each other

• repel each other

Which force acts backwards and prevent us form slipping on a wet floor?

• Gravitational force

• Magnetic force

• Frictional force

• Electrostatic force

In what condition the magnetic poles attract each other?

• South-South

• North-North

• North-South

• All of the above

Tags

NGSS.MS-PS2-3

When you rub your hand heat energy is generated because of _____

• Magnetism

• Muscular force

• Electrostatic force

• Friction

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Force can __

• Change only direction

• Change only speed

• Change only shape

• All of the above

A rolling ball will slow down until it finally stops. What force slows down and stops the ball?

• gravity

• solar power

• friction

• speed

Tags

NGSS.MS-PS2-2

Which sentence below describes a contact force?

• A baseball bat hits a baseball

• A book falls to the floor

• A leaf floats in the air and falls to the ground.

• A magnetic force pulls a paper clip toward a magnet

Brittany has a bar magnet. What will happen when she brings the north end of her magnet to the south end of her magnet?

• They will attract

• Nothing will happen

• They will repel

• Sparks will fly

Tags

NGSS.MS-PS2-3