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