U1m2l2

Balanced forces cause

• no motion at all

• change motion (acceleration)

• no change in motion

Tags

NGSS.HS-PS2-1

What is the net (sum) of the forces acting on the object?

• 0 N

• 10 N

• 5 N

Tags

NGSS.MS-PS2-2

A group of students places weights onto 4 different carts. The students pull each of the carts with the same amount of force. Which cart has the least change in speed?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-2

How do you decrease the friction force?

• By using a smooth surface

• By using a rough surface

• By not pushing hard

• By pushing down

What happens when unbalanced forces act on an object at rest?

• the object remains at rest

• the object begins moving in an unpredictable direction

• the object begins moving in the direction of the net force

• the object begins moving opposite to the direction of net force

Tags

NGSS.MS-PS2-2

If the sum of the forces acting on an object add up to more than 0, the forces are

• equal

• opposite

• balanced

• unbalanced

Tags

NGSS.MS-PS2-2

What happens if a force is added to an object??

• the object speeds up

• the object changes direction

• the object speeds up and changes direction

• the object speeds up or slows down and can change direction, depending how much force is added and in which direction

Tags

NGSS.MS-PS2-2

Unbalanced forces cause

• change in motion

• speeding up, slowing down, and/or changing direction

• acceleration

• all answers are correct

Tags

NGSS.MS-PS2-2

What is the net force?

• 65 N left

• 65 N right

• 35 N left

• 35 N right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the net force?

• 11 N left

• 11 N right

• 3 N left

• 3 N right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2