Introductory Physics Worksheet With Answers - Mcas Review Packet #1 - Nnhs Page 14
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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.
25.) A mosquito flies into the oncoming
26.) You punch a wall. Afterwards your hand
windshield of a large truck. The truck exerts a
hurts so you know that the wall must have
exerted a force on your hand. The wall didn’t
force of 10 Newtons on the mosquito. What
can we say about the force that the mosquito
move or react. Did you exert a force on the
exerts on the truck?
wall?
A. The mosquito exerts a force much less than
A. Yes, I exerted a force on the wall. Forces
10N on the truck.
always occur in pairs. The force that I exerted
B. The mosquito exerts a force exactly equal to
is equal in magnitude and opposite in direction
10N on the truck.
to the force that the wall exerted on me.
C. The mosquito exerts a force much greater
B. Yes, I exerted a force on the wall. Forces
than 10N on the truck.
always occur in pairs. The force that I exerted
D. Not enough information is provided.
on the wall is much smaller than the force that
the wall exerted on me which is why the wall
doesn’t move.
C. No, I didn’t exert a force on the wall. If I
had exerted a force on the wall, the wall would
have moved.
D. No, I didn’t exert a force on the wall. You
can’t exert forces on solid objects like walls.
My Answer and Explanation:
My Answer and Explanation:
B. Newton’s third law says that the
A. Newton’s Third Law.
force one object exerts on a second
object is equal in magnitude and
opposite in direction to the force that
the second object exerts on the first
object. The force that the mosquito
exerts on the truck is exactly equal in
magnitude to the force that the truck
exerts on the mosquito.
Correct Answer and Explanation:
Correct Answer and Explanation:
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