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Force
Test Description: Review of force unit.
Instructions: Answer all questions to get your test result.
1) A runner is slowing down as she runs up a hill. Is this a balanced or unbalanced force?
A
balanced
B
unbalanced
2) A runner is running at a steady rate of 6 m/h. Is this an example of balanced or unbalanced forces?
A
unbalanced
B
balanced
3) A runner stops for a drink of water. Is this an example of balanced or unbalanced forces?
A
unbalanced
B
balanced
4) A book sitting on a desk is an example of a ______________ force.
A
unbalanced
B
balanced
5) A student falling off a chair is an example of a ______________ force.
A
unbalanced
B
balanced
6) Whic force needs to be touching to affect other items?
A
magnetism
B
electricity
C
friction
D
gravity
7) Which force does not need to be touching to affect other items?
A
normal force
B
applied force
C
magnetism
D
friction
8) What is a factor that affect the amount of friction?
A
volume
B
weight
C
smell
D
color
9) If a person goes to the moon, what would happen to his/her weight?
A
weight would decrease
B
it is impossible to know
C
weight would stay the same
D
weight would increase
10) If a person goes to the moon, what would happen to his/her mass/?
A
mass would decrease
B
mass would increase
C
it is impossible to know
D
mass would stay the same
11) These are the 2 factors that affect how much gravity works on an object...
A
length and width
B
weight and size
C
distance and shape
D
mass and distance
12) A boy is pulling a dog with a force of 40 N to the left. The dog pulls back with a force of 45 N to the right. What is the net force?
A
10 N
B
85 N
C
5 N
D
2.5 N
13) A girl and her dad move a playhouse. The girl pushed with a force of 20 N to the right. The girl's dad pushes to the right also with a force of 47 N. What is teh net force?
A
20 N
B
70 N
C
27 N
D
67 N
14) When forces are balanced, the total force ____.
A
is negative
B
is zero
C
is equal to the largest force
D
is greater than the sum of the forces
15) A force is a...
A
pull
B
something that may cause a change in movement
C
all of the above
D
push
16) Mr. Smith and his wife are trying to move his new chair. Mr. Smilth pulls with a force of 30 N to the left while his wife pushes to the left with a force of 27 N. What is the net force?
A
52 N
B
64 N
C
3 N
D
57 N
*select an answer for all questions
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