Force and Motion Test

What force pushes up against gravity when an object falls?

• air resistance

• friction

• velocity

• inertia

Tags

NGSS.MS-PS2-4

A change to an object's motion is caused by...

• balanced forces

• unbalanced forces

• acceleration

• velocity

Tags

NGSS.MS-PS2-2

A force is described as ...

• a push only

• a pull only

• a push or a pull

• none of these

Tags

NGSS.MS-PS2-1

What unit do scientists use to measure force?

• Newtons

• Grams

• Meters

• Meters per second

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-5

Describe the motion of a person not wearing a seat belt if the car stops suddenly.

• the person and car will stop together

• the person will stop faster than the car because they are lighter

• the car will stop and the person will keep moving forward

• the car will stop and the person will speed up

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

This is a picture of two magnets. For these magnets to be attracted, side 1 must be __________ and side 2 must be _________.

• north; north

  or

  south; south

• north; south

  or

  south; north

How is an object’s mass related to the force needed to start the object moving?

• mass is not related to the force needed

• the smaller the mass, the greater the force needed

• the greater the mass, the greater the force needed

• 
  the greater the mass, the smaller the force needed

Tags

NGSS.MS-PS2-2

What is the trend of the graph between 3 seconds and 6 seconds?

• constant acceleration

• constant deceleration

• at rest

Tags

NGSS.MS-PS3-1

Tisa and Lily ran a race in gym class. Lily was off balance so she did not start until 2 seconds had passed.

What is Lily's average speed during the periods in which she was actually running? (Note: Lily did not start running until time = 2 s.)

• 6.0 m/s

• 6.5 m/s

• 7.5 m/s

• 8.0 m/s

Tags

NGSS.MS-PS3-1

The box is being pushed to the right with a force of 300 newtons, and to the left with a force of 400 newtons.

What is the magnitude of the net force on the box?

• 100 N

• 300 N

• 400 N

• 700 N

Tags

NGSS.MS-PS2-2