# Force: Question Preview (ID: 29261)

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A force is a...
a) push
b) pull
c) something that may cause a change in movement
d) all of the above

When forces are balanced, the total force ____.
a) is greater than the sum of the forces
b) is negative
c) is zero
d) is equal to the largest force

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) 27 N
b) 20 N
c) 67 N
d) 70 N

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) 2.5 N
b) 5 N
c) 10 N
d) 85 N

These are the 2 factors that affect how much gravity works on an object...
a) length and width
b) weight and size
c) mass and distance
d) distance and shape

If a person goes to the moon, what would happen to his/her mass/?
a) mass would stay the same
b) mass would increase
c) mass would decrease
d) it is impossible to know

If a person goes to the moon, what would happen to his/her weight?
a) weight would stay the same
b) weight would increase
c) it is impossible to know
d) weight would decrease

What is a factor that affect the amount of friction?
a) color
b) volume
c) weight
d) smell

Which force does not need to be touching to affect other items?
a) friction
b) applied force
c) magnetism
d) normal force

Whic force needs to be touching to affect other items?
a) electricity
b) magnetism
c) gravity
d) friction

A student falling off a chair is an example of a ______________ force.
a) balanced
b) unbalanced
c)
d)

A book sitting on a desk is an example of a ______________ force.
a) balanced
b) unbalanced
c)
d)

A runner stops for a drink of water. Is this an example of balanced or unbalanced forces?
a) balanced
b) unbalanced
c)
d)

A runner is slowing down as she runs up a hill. Is this a balanced or unbalanced force?
a) balanced
b) unbalanced
c)
d)

A runner is running at a steady rate of 6 m/h. Is this an example of balanced or unbalanced forces?
a) balanced
b) unbalanced
c)
d)

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) 3 N
b) 57 N
c) 52 N
d) 64 N

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