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Science Motion Review
Test Description: Chapter 2
Instructions: Answer all questions to get your test result.
1) Velocity includes both
A
gravity and mass
B
speed and direction
C
distance and speed
D
direction and time
2) The rate that a car's velocity changes is its
A
speed
B
friction
C
force
D
acceleration
3) When you change your direction of movement, you change your
A
motion
B
mass
C
velocity
D
gravity
4) The tendency of an object to stay at rest is called
A
weight
B
lazy
C
inertia
D
Newton
5) An object will keep moving until something
A
tells it to stop
B
picks it up
C
speeds it up
D
slows it down
6) forces work in
A
groups
B
pairs
C
unison
D
construction zones
7) A measure of force that gravity exerts on an object is
A
tons
B
friction
C
weight
D
gravity
8) The closer things are the _______________ the attraction
A
less
B
greater
C
equal
D
louder
9) If things are far apart, they have _________ attraction
A
louder
B
equal
C
less
D
more
10) what makes a falling object accelerate as it gets closer to Earth?
A
force
B
gravity
C
weight
D
friction
11) To reduce sliding friction on the moving parts of a machine, you could add
A
rocks
B
sand
C
oil
D
chains
12) Rolling friction occurs between one flat surface and another surface that is
A
smooth
B
round
C
rigid
D
flat
13) The type of friction that helps a parachute float slowly to Earth
A
rolling friction
B
streamlining
C
air resistance
D
sliding friction
14) when you measure how far something travels in a certain amount of time you measure the
A
speed
B
distance
C
height
D
weight
15) If you want a machine to reduce air resistance, then you do what to it?
A
motivate it
B
streamline
C
dance with it
D
push it
16) A push or a pull is an example of
A
force
B
mass
C
air resistance
D
speed
17) How does friction affect inertia ?
A
slows it down
B
speeds it up
C
has no affect
D
makes it smile
*select an answer for all questions
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