Transcript What is a Force Review Slide Show – Chapter 1 Section 2

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
best represents force?
5.
A. A push or pull which never causes
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!!!
You can find this
review on the Frost
website under
Science Homework!