Magic School Bus: Forces (Plays Ball)

What is friction? 

• A force caused by the pull of the earth.
• A force caused by things rubbing together.
• A force caused by something sitting on top of another object.
• A force caused by something being compressed, or squished.

What effect does friction have on an object? 

• Causes an object to fall.
• Friction has no effect on an object.
• Slows down and stops it.
• Speeds an object up.

Tags

NGSS.MS-PS2-2

Without friction objects would...

• Continue to move until it hits another object.
• Stop moving more quickly.
• remain stationary, or would not move.
• Fall to the ground.

Tags

NGSS.MS-PS2-2

What causes a stationary (still) object to start moving?

• A force called Friction. 
• A force caused by the Earth's mass.
• Objects can start moving on their own with no help.
• Another force acting on the object like a push or a pull.

Tags

NGSS.MS-PS2-2

Why would it be impossible to play baseball if there were no friction? 

• Everyone would become too light and would float off the ground.
• Nothing would ever slow down or stop moving. 
• Nothing would be able to speed up or start moving.
• The rules would change.

Tags

NGSS.MS-PS2-2

_________ happens between a ball and the grass when it stops.

• Friction

• Force

• Motion

• Earth

True or False: Friction slows down or stops every motion on earth.

• True

• False

Tags

NGSS.MS-PS2-2

When we walk friction from our feet presses against the _______

• desk

• sky

• ground

• moon

Which of these is an example of friction?

• Rubbing your hands together

• Laying in bed

• Watching Television

• Playing on your iPhone

What force causes a rolling baseball to stop rolling on the ground?

• push

• pull

• gravity

• friction

Tags

NGSS.MS-PS2-2