Science 3, Test 7 Question Preview (ID: 48507)


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The force that pulls objects toward the center of the earth is called _____.
a) magnetism
b) friction
c) gravity
d) weight

_____ is a force that slows down or stops a motion.
a) magnetism
b) force
c) friction
d) gravity

_____ is the pushing or pulling force caused by a magnet.
a) gravity
b) magnetism
c) friction
d) weight

The measure of the force of gravity on an object is called _____.
a) gravity
b) weight
c) motion
d) force

A change of position is called _____.
a) magnetism
b) force
c) work
d) motion

Gravity is a kind of _____.
a) invisible force
b) force
c) weight
d) friction

Objects cannot move unless a _____ causes them to move.
a) work
b) motion
c) friction
d) force

When a force moves something, we say that _____ is done.
a) change
b) motion
c) force
d) work

Simple machines make work _____.
a) force
b) easier
c) harder
d) changing

Energy can _____ from one form to another.
a) change
b) force
c) work
d) gravitate

Photosynthesis is what kind of energy?
a) light
b) electrical
c) chemical
d)

A light bulb is what kind of energy?
a) light
b) electrical
c) stored
d)

Burning gasoline in a truck is what kind of energy?
a) mechanical
b) electrical
c) chemical
d)

Riding a bicycle is what kind of energy?
a) mechanical
b) stored
c) chemical
d)

A battery in a camera is what kind of energy?
a) sound
b) stored
c) electrical
d)

Ringing a bell is what kind of energy?
a) stored
b) chemical
c) sound
d)

When a tractor plows a field, what is working?
a) animals
b) machines
c) people
d) wind

When cornstalks blow in a field, what is working?
a) animals
b) people
c) wind
d) machines

When field workers pick corn, who is working?
a) machines
b) people
c) wind
d) animals

When a watermill grounds corn, what is working?
a) animals
b) people
c) wind
d) water

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