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