Physics Chapters 3-4 Question Preview (ID: 7501)


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Needed to change an object's motion.
a) force
b) inertia
c) mass
d) gravity

First to conclude that the Earth and other planets revolve around the Sun.
a) Copernicus
b) Galileo
c) Aristotle
d) Newton

How long would an object continue to move if there were no friction?
a) forever
b) until gravity acted on it
c) until it stops
d) for awhile and then it would stop

Acceleration due to gravity at Earth's surface is equal to what number?
a) 5
b) 1.6
c) 10
d) 3.4

Speed is a vector quantity.
a) True
b) False
c)
d)

A 75 kg man would weigh how many newtons?
a) 7.5 N
b) 750 N
c) 165 N
d) 34.09

Rearrange the formula v = d/t to solve for t
a) t = dv
b) t = v/d
c) t = d/v
d) t = vd

Objects on Earth will never fall at the same rate because of gravity.
a) True
b) False
c)
d)

A 27 kg girl's weight would equal what in pounds.
a) 59.4 lbs.
b) 12.27 lbs.
c) 270 lbs.
d) 2.7 lbs.

Divided motion into 2 types; violent and natural.
a) Galileo
b) Copernicus
c) Aristotle
d) Newton

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