A student pushes against a wall with 30 N of force, and the wall does not move. What force does the wall exert on the student?
A.
0 N
B.
less than 30 N
C.
30 N
D.
more than 30 N
2.
A desk weighing 200 N rests on the floor. How much force does the floor apply to the desk?
A.
0 N
B.
less than 200 N
C.
200 N
D.
more than 200 N
3.
Which one of Newton's Law states "A body at rest tends to remain at rest, and a body in motion tends to remain in motion, unless acted upon by an unbalanced force?"
A.
Newton's First Law
B.
Newton's Second Law
C.
Newton's Third Law
D.
Newton's Zero Law
4.
What will happen to an object in motion with NO unbalanced force acting on it?
A.
it will continue to accelerate
B.
it will slow down and come to a stop
C.
it will move at a constant speed
D.
it will accelerate but then slow down
5.
There is nothing in the path of a baseball thrown up towards the sky, what will happen to the ball?
A.
it will remain going up into the sky, until it hits something
B.
it will eventually use all its energy up and fall back to the ground
C.
the force of gravity will act on the ball, causing it to fall back to the ground.
