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