Contact Forces and Motion Concepts

Which picture shows contact forces causing a change in motion.

Select ALL that apply.

• 
• 
• 
• 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A girl pushes a toy train along a train track. The train stops after moving 30 centimeters.

How could the girl make the train go farther than 30 centimeters on her second push?

What should she change?

• Push the train harder.

• Push the train for longer.

• Pull the train.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Each boy is using the same amount of force.

Which log will roll the farthest?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which photos show contact forces that change the motion of a ball?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A baseball is thrown to a player's glove.

Which force causes the motion of the baseball to stop?

• the push of the ground against the ball.

• the push of the player's glove against the ball

• the push on the ball from the pitcher that threw it

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A skateboarder wants to travel farther.

How should he change the force of his push?

• He should pull the skateboard.

• He should push off with his foot harder.

• He should push softer with his foot.

Tags

NGSS.MS-PS2-1

A ball is sitting on a gym floor.

What could cause the ball to change position?

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A push and a pull on an object is an example of a _______

• mean thing to do

• gravity

• force

• speed

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Tags

NGSS.MS-PS2-1

When you type on the keys of your Chromebook you are using a

• pull
• push
• gravity
• friction

Tags

NGSS.MS-PS2-2