What is the unit called that measures force?

• weight
• meter
• Newton
• kilogram

Tags

NGSS.MS-PS2-1

What does friction produce?

• light
• sound
• heat
• gravity

Tags

NGSS.4-PS3-2

The force that acts in the opposite direction of motion when two surfaces come in contact. 

• Force
• Friction
• Static
• Kinetic 

Tags

NGSS.3-PS2-1

How does friction affect speed?

• more friction decreases speed
• more friction increases speed
• less friction decreases speed

Tags

NGSS.3-PS2-1

The rougher the surface, the faster an object will travel over the surface.

• True
• False

Tags

NGSS.4-PS3-1

When most objects with smooth surfaces rub, there is less friction.

• True
• False

Friction is a force that acts in an ___________ direction of movement.

• similar
• opposite
• parallel
• west

Tags

NGSS.3-PS2-1

When there is friction, the energy of an object's motion is converted into _______ energy

• heat

• kinetic

• stronger

• friction

Tags

NGSS.MS-PS3-5

Which of the following is NOT an example of friction?

• using the brakes on your bike to slow you down

• putting your hand out the window

• a satellite traveling through deep space

• a hockey puck going across an ice rink

This car is turning, but there’s a puddle of water in the road. Which diagram best shows how the puddle will affect the path of the car after it hits the puddle?

• 
• 
• 
• 

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2