Laws of Motion Test Review

Objects will keep on doing what they are doing if ____.

• unbalanced forces are acting on them.

• balanced forces are acting on them.

Tags

NGSS.MS-PS2-2

A dog slides to a stop in the presence of friction. The forces acting on the dog are _____.

• balanced

• not balanced

The more mass an object has:

• the higher its inertia (harder to move)

• the lower its inertia (easier to move)

Tags

NGSS.HS-PS2-1

What happened to the man and his bike once he hit the block?

• The bike stopped, but the man flew forward due to inertia.

• The bike kept going, so he flew forward due to interia.

• The man stopped, but the bike kept going.

• The man and bike both stopped.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

If the man on the right is pushing 50N to the left, and the man on the left is pushing 40 N to the right, then what is the net force?

• 10 N to the left

• 10 N to the right

• 90 N to the left

• 90 N to the right

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Why do all of the planets orbit the sun rather than Earth?

• the sun has more mass than the planets

• the sun has less mass than the planets

• the Earth is heavier

• the sun is in the middle of the milky way

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

If Earth's mass was cut in half, what would happen to your weight?

• It would ncrease because the gravitational force increases.

• It would decrease because the gravitational force decreases.

• It would decrease because the gravitational force increases.

• Nothing, weight is not affected by gravitational force.

Tags

NGSS.MS-PS2-4

A person would weigh less on on the Moon than on the Earth because . . .

• The Moon has more mass, and therefore more gravity

• The Moon has less mass, and therefore more gravity

• The Moon has more mass, and therefore less gravity

• The Moon has less mass and therefore less gravity

Tags

NGSS.MS-PS2-4

Match the following Law of motion with the correct example

• Hit a ball with 2 different forces, the ball will have greater acceleration due to larger force

• Newton's 1st law of motion

• Bouncing the ball on the court is the action, the floor pushing the ball back up is the reaction

• Newton's 2nd law of motion

• Roll a ball across smooth/rough surfaces. The ball rolls faster on smooth because less fiction

• Newton's 3rd of motion

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

According to Newton's second law, if you increase the force applied to an object :

• it accelerates more
• it doesn't move
• you get more inertia
• it decelerates

Tags

NGSS.MS-PS2-2