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Forces And Motion Test
Test Description: Unit 3: Forces and Motion Test Review
Instructions: Answer all questions to get your test result.
1) A train that travels 100 kilometers in 4 hours is traveling at what average speed?
A
50 km/hr
B
100 km/hr
C
2 km/hr
D
25 km/hr
2) Which of the following is an example of exerting a force?
A
a carpenter hammering a nail
B
an airplane soaring through the sky
C
a child running through a field
D
a train speeding down a track
3) In graphing motion, the steepness of the line depends on
A
when the object began moving
B
the direction the object is moving
C
how far the object moved
D
how quickly or slowly the object is moving
4) If the speed of an object does NOT change, the object is traveling at a
A
decreasing speed
B
increasing speed
C
average speed
D
constant speed
5) Which of the following is an example of increasing friction?
A
oiling a squeaky door
B
throwing sand on an icy driveway
C
adding grease to gears on a bike
D
waxing skiis
6) The greater the mass of an object,
A
the greater the inertia
B
the more balanced it is
C
the easier the object starts moving
D
the more space it takes up
7) A place or object used for comparison to determine is something is in motion is called
A
a constant
B
a position
C
velocity
D
a reference point
8) If a bicyclist travels 30 km in 2 hours, her average speed is
A
15 km/hr
B
60 km/hr
C
2 km/hr
D
30 km/hr
9) According to Newton's third law of motion, when a hammer strikes and exerts force on a nail, the nail
A
disappears into the wood
B
creates friction with the hammer
C
exerts an equal force on the hammer
D
moves at a constant speed
10) The achievement of lifting a rocket off the ground and into space can be explained by
A
newtons 1st law
B
the law of conservation of momentum
C
newtons 3rd law
D
newtons 2nd law
11) Which of these is an example of negative acceleration?
A
an airplane following a straight flight path
B
a car approaching a red light
C
a bird taking off for flight
D
a baseball released by a pitcher
12) If an object moves in the same direction and at a constant speed for 4 hours, which of the following is true?
A
the object's velocity did not change.
B
the object decelerated during the 4 hours.
C
the object's speed changed during the 4 hours
D
the object accelerated during the 4 hours
13) How can you increase the momentum of an object?
A
by decreasing its acceleration
B
by decreasing its velocity
C
by increasing its friction
D
by increasing its mass
14) On a graph showing distance vs. time, a horizontal line represents an object that is
A
not moving at all
B
moving at a constant pace
C
decreasing speed
D
increasing its speed
15) The force that pulls falling objects toward Earth is called
A
air resistance
B
gravity
C
acceleration
D
free fall
16) The tendency of an object to resist change in its motion is known as
A
balance
B
mass
C
force
D
inertia
17) When an objects distance from another is changing
A
it is in motion
B
it is speeding
C
it has a high velocity
D
it is accelerating
18) Changing direction is an example of a kind of
A
constant rate
B
acceleration
C
speed
D
velocity
19) The force that one surface exerts on another when the two rub against each other is called
A
friction
B
inertia
C
acceleration
D
gravity
20) What happens when two forces act in the same direction?
A
the stronger one pervails
B
their sum divided by two is the total force
C
they cancel each other out
D
they add together to create the net force
*select an answer for all questions
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