Forces and Motion

What is a force?

• push or pull

• change in direction

• change in speed

• collision

Tags

NGSS.MS-PS2-1

How can an object change its motion?

• speed up

• slow down

• change direction

• All of the above are correct

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which object would be pulled the most by gravity?

• book

• cement block

• pencil

• basketball

Tags

NGSS.MS-PS2-4

What does friction cause to happen?

• An object will slow down

• An object will speed up

• An object will collide with another object.

• An objects speed will remain constant.

What is the correct way to find the speed of an object? 

•  $speed\ =\frac{time}{dis\tan ce\ }$  

•  $speed\ =\frac{dis\tan ce}{time}$  

•  $dis\tan ce=\ \frac{speed}{time}$  

•  $time=\ \frac{dis\tan ce}{speed}$  

Tags

NGSS.MS-PS3-1

Which is NOT TRUE about magnetism and magnets?

• Magnets can push away other magnets.

• Magnets can pull other magnets.

• magnetism is a non-contact force.

• Magnetism is a contact force.

Tags

NGSS.MS-PS2-5

Select ALL answers that are true about collisions.

• collisions can make objects speed up or slow down

• collisions can make objects change direction.

• collisions are non-contact forces

• collisions are contact forces

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

NGSS.MS-PS3-5

What is a contact force?

• a force that occurs when objects are not touching

• a force that occurs when objects touch

• a force that makes things fall to the ground

• a force that pulls metal objects

What does weight measure ?

• the size of an object

• gravity's pull on an object

• the mass of an object

• friction's pull on an object

Tags

NGSS.HS-PS2-4

Choose ALL of the examples of a force that changes motion

• pushing a cart

• pulling a thread

• gravity

• a pencil laying on the table

• a box sitting on the floor

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4