Force and Motion Review 8th grade

With an unbalanced force, the object will move in the direction of the _____________________ force.

• smaller

• larger

• equal

• potential

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If you have balanced forces on a soccer ball, what will happen?

• Nothing, it will not move

• It changes its motion to speed up

• It changes its motion to slow down

• It changes its motion to turn

Tags

NGSS.MS-PS2-2

You push on a giant redwood tree with 20 N of force. The tree does not move. The tree is pushing back on you with _____________________ of force.

• 40 N

• 10 N

• 20 N

• 3 N

Tags

NGSS.MS-PS2-1

If a car is traveling 55 miles per hours with the cruise control on...this is describing a/an ______________________ force.

• balanced

• unbalanced

• potential

• net

Tags

NGSS.MS-PS2-2

Friction is a force that acts in the _____________________ direction of a moving object to slow it down.

• same

• fastest

• equal

• opposite

What is the net force on this object?

• 200 + 200 = 400 N

• 200 - 200 = 0 N

• 200 x 200 = 4,000 N

• Not enough information

Tags

NGSS.HS-PS2-1

What is the net force on this object?

• 10 - 7 = 3 N

• 10 + 7 = 17 N

• 17 + 3 = 20 N

• 0 N

Tags

NGSS.MS-PS2-2

Which way is this object moving?

• up

• right

• down

• left

Which one of these is a balanced force?

• Bottom pic is balanced 400 - 300 = 100 N

• They are both balanced

• Top pic is balanced 300 - 300 = 0 N

• Neither one is balanced

What is the net force on this object AND which way is it moving?

• 4 + 4 = 8 ( 8 - 3 )= 5 N to the left

• 4 - 4 = 0 (3 - 0 )= 3 N to the left

• 4 - 4 = 0( 3 - 0) = 3 N to the right

• 4 + 4 = 8( 8 - 3) = 5 N to the right

Tags

NGSS.MS-PS2-2