Newtons Laws Multiple choice Physics
The amount of net force required to keep a 5-kg object moving rightward with a constant velocity of 2 m/s is ....
0 Newtons
The units of mass are ...
kilograms
Every contact force produces an equal and opposite contact force. This is a summary of...
Newton's Third Law
Two objects, one having three times the mass of the other, are dropped from the same height in a vacuum. At the end of their fall, their velocities are equal because...
both objects fall with the same acceleration
An object moving at constant velocity must:
have zero net force on it
Objects at rest on a level surface experience a "support force." This is also referred to as ....
normal force
Acceleration is always in the direction...
of the net force
The inertia of a body tends to cause the body to...
resist any change in its motion
A baseball player hits a ball with a bat. The action force is the impact of the bat against the ball. The reaction to this force would be...
the force that the ball exerts on the bat
A feather and a lead ball are dropped from rest on the moon, where there is no air. The acceleration of the feather is...
the same as that of the lead ball
Mass differs from weight in that:
weight is a force and mass is not
A car travels east at a constant velocity. The net force on the car is...
zero
