Friction and Forces

If an object is traveling at constant velocity, which two forces will be equal?

• weight and net

• applied and frictional

• net and frictional

• net and applied

Name the missing force...

• frictional force

• weight force

• thrust

• buoyant force

The force between the two people through the rope is

• Contact Pull

• Non-contact Pull

• Contact Push

• Non-contact Push

Tags

NGSS.MS-PS2-1

Rina’s mother asked her to help move some items from the hall closet to the garage. One item she wanted to move was a large box of old school books. Rina tried to lift the box, but could not pick it up. What force was Rina NOT able to overcome?

• frictional force

• gravitational force

• applied force

• normal force

Tags

NGSS.MS-PS2-4

This type of force resist motion between two surfaces that are pressed together

• contact

• gravity

• friction

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

• similar

• opposite

• parallel

• west

What is force?

• energy sources

• moving matter

• a push or pull

• making things happen

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What scientific instrument can measure force?

• balance

• graduated cylinder

• spring scale

• ruler

What is friction?

• energy when something is pushed

• force needed to move something

• force that pushes or pulls

• force that one force exerts on another when rubbed together

What is the net force?

• 20 N 

• 0 N 

• 400 N 

• 40 N 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2