# What Is a Force Chapter 1 Section 2 Review .pptx by malj

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```									What Is a
Force?
Chapter 1 Section 2
Review
1.   What is a newton?
A.   A moving object
B.   A point of reference
C.   The SI unit for force
D.   A push or pull
A newton is…
C. The SI unit for force
2. Force is…
A. A great deal of weight
B. A push or pull exerted on an
object in order to change the
object’s motion
C. A change in position relative
to a reference point
D. The speed of an object in a
certain direction
A force is…
B. A push or pull
exerted on an object
in order to change the
object’s motion
3. What is net force?
A. A blocker in volleyball
B. A push or pull
C. The speed of an object in a
certain direction
D. The combination of all
forces acting on an object
Net force is…
D. The combination
of all forces acting on
an object
4. Are the forces on a kicked football
balanced or unbalanced? Why?
A. Balanced, since the
football is moving
B. Unbalanced, since the
football is moving
C. Balanced, since the
football is still
D. Unbalanced, since the
football is still
The forces on a kicked football
are…
B. Unbalanced, since
the football is moving
Which of the following choices
5.
best represents force?
A. A push or pull always causing
motion
B. A push or pull always causing
acceleration
C. A push or pull acting without an
object
D. A push or pull acting on an object
Force is represented
by…
D. A push or pull
acting on an object
6. A boy pulls a wagon with a force of 8 N
West as another boy pushes it with a force
of 6 N West. What is the net force?

A.   14 N East
B.   2 N West
C.   2 N East
D.   14 N West
8 N West + 6 N West =
D. 14 N West
7. Which of the following best determines
net force when more than one force is
acting on an object?
A. A combination of all motions of
an object
B. A combination of all motions of
an object in 2 directions
C. A combination of all forces
acting on an object
D. A combination of forces acting
on an object in 2 directions
Net force is best
determined when…
C. A combination
of all forces is acting
on an object
8. Which of the following may happen
forces?
A. The object changes
direction
B. The object changes speed
C. The object starts to move
D. All of the above
unbalanced forces, it
moves, so…
D. All of the above
9. When the net forces equal
0 N, they are which of the following?

A.   Balanced
B.   Unbalanced
C.   A push
D.   A pull
When net forces equal 0 N,
they are…
A. Balanced
10. What is an example of an unbalanced
force causing a change in motion?

A. Pulling on a drawer so it
opens
B. Pushing a chair across the
floor
C. Pedaling a bicycle
D. All of the above
D. All of the above
11. Which of the following always
causes a change in speed, direction,
or both?
A. Balanced forces
B. Unbalanced forces
C. Either balanced or
unbalanced forces
D. Any combination of
forces
B. Unbalanced forces
12. What is an example of an object
that has balanced forces acting on it?

A. A car going down the
street
B. A book resting on a
table
C. A kid riding a bike
D. A windmill turning
B. A book resting
on a table
13. Which of the following causes
an object to start moving?
A. Balanced forces
B. Unbalanced forces
C. Either balanced or
unbalanced forces
D. Any combination of
forces
B. Unbalanced forces
14. One Newton is the
equivalent of…
B.   1 pound
C.   1 apple
D.   10 grams
1 Newton is equal to…
15.   When 2 forces act in
opposite directions, you ______ the
smaller force from the larger force
to determine the net force.