I need help with my study guide.

Question 1

1. The difference between speed and velocity is that velocity also gives you an objects _______________.

		acceleration
		direction
		force
		timing

Question 2

1. Which metric unit is used to express a measure of weight?

		kg
		J
		N
		m/s2

Question 3

1. Which statement is true about a braking car traveling +15 m/s towards a stop sign?

		It's velocity is positive.
		It has a negative acceleration
		Its velocity is changing
		Its decelerating.
		All of the above

Question 4

Match each action with one of Newton's Laws of Motion that best explains the motion.

Reaching Terminal Velocity while sky diving.

A batter hitting a baseball and the baseball traveling in the same direction as the swinging bat.

A body being propelled against the seat belt of a car during an accident.

Feeling lighter when an elevator moving up suddenly stops.

Punching a wall and hurting your hand.

Pushing the gas pedal down harder and feeling the car accelerate faster.

A.	1st law
B.	2nd law
C.	3rd law

Question 5

1. Even though the momentum of a gun and a bullet being shot out of the gun have the same momentum, the gun does not have the same effect on your shoulder that the bullet would because the gun has a greater Blank 1 and smaller Blank 2.