Introductory Physics Worksheet With Answers - Mcas Review Packet #1 - Nnhs Page 9
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NNHS Introductory Physics: MCAS Review
Packet #1
1. Motion and Forces
Broad Concept: Newton’s laws of motion and gravitation describe and predict the motion of
most objects.
15.) You are driving along at a constant 20
16.) What do you have to do to get a boulder
miles per hour. Then you slam on the brakes.
that is at rest to start moving?
What happens to your books that are on the
A. Nothing. It will eventually start moving.
passenger side seat?
B. Apply a force that balanced the force of
A. The books stay on the seat.
friction.
B. The books continue moving forward and
C. Apply an unbalanced force to the boulder.
fall on the floor.
D. It is impossible to get the boulder moving
C. The books fly up in the air and end up in the
because an object at rest stays at rest forever.
back seat.
D. The books slide to outside of the car.
My Answer and Explanation:
My Answer and Explanation:
B. Newton’s First Law of Motion says
C. To get a boulder that is at rest to
that an object in motion will continue in
start moving, you are accelerating the
motion until an outside, unbalanced
boulder. (A change from rest to motion
force is exerted. The books were moving
is acceleration.) An unbalanced force is
forward so they continue to move
necessary for acceleration.
forward even though the car has
stopped. The friction between the seat
and the books isn’t enough to hold them
in place.
Correct Answer and Explanation:
Correct Answer and Explanation:
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