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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
when an object receives unbalanced
forces?
A. The object changes
 direction
B. The object changes speed
C. The object starts to move
D. All of the above
When an object receives
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…
A.   About 100 grams
B.   1 pound
C.   1 apple
D.   10 grams
1 Newton is equal to…
A. About 100 grams
15.   When 2 forces act in
opposite directions, you ______ the
smaller force from the larger force
to determine the net force.
A.   Add
B.   Subtract
C.   Multiply
D.   Divide
B. Subtract
   The quiz is on
      Tuesday!
Make sure you are
     prepared!
Study, study, study!!!

								
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