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Duplicate of AP Physics-1: Newton's Laws Flashcards | StudBud
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Duplicate of AP Physics-1: Newton's Laws
Duplicate of AP Physics-1: Newton's Laws
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1
The mass of a body
is slightly different at different places on the Earth
is the same for all bodies of the same volume
is a vector
is independent of the acceleration due to gravity
2
Acceleration is always in the direction
of the net force
of the displacment
of the instantaneous velocity
of the initial velocity
3
In SI units, a force is numerically equal to the ___, when the force is applied to it.
velocity of the standard kilogram
velocity of any object
speed of the standard kilogram
acceleration of the standard kilogram
4
A ball with a weight of 1.5 N is thrown at 30° above the horizontal. At its peak,
the net force is 9.8 N, 30° below the horizontal
9.8 N, up
1.5 N, down
zero N
5
A 6 kg shark is moving south. A net force of 12 N north on it will cause an acceleration of
36 m/s2, north
6 m/s2, north
2 m/s2, north
2 m/s2, south
6
A newton is the force
of gravity on a 1 kg body
that gives a 1 kg body an acceleration of 1 m/s2
of gravity on a 1 g body
that gives a 1 kg body an acceleration of 9.8 m/s2
7
An object moving at constant velocity in an inertial frame must
eventually stop due to graivty
have a net force on it
have zero net force acting on it
not have any force of gravity acting on it
8
A 13 N and 12 N weight are hung over an Atwood's machine. The acceleration of the 13 N is
1/13
13/25
1
1/25
9
A circus performer of weight mg is walking along a high wire as shown. The tension in the wire
is approximately mg/2
much more than mg
much less than mg
is approximately mg
10
You stand on a scale in an elevator. Of the following, the scale reads the highest when
moves downward with increasing speed
moves downward with decreasing speed
moves upward with constant speed
remains stationary
11
The term mass refers to the same physical concept as
acceleration
weight
inertia
force
12
A car travels east at constant velocity. The net force on the car is
east
west
zero
down
13
2 forces are applied to a 5 kg cow. One is 6 N north. The other is 8 N, west. The acceleration
has a magnitude of 10 m/s2
has a magnitude of 2.0 m/s2
has a magnitude of 0.50 m/s2
has a magnitude of 2.8 m/s2
14
A 9000 N cow is pushed on a level road by 4 students with a force of 500 N. Acceleration __.
is 1.8 m/s2
is 0.055 m/s2
is 18 m/s2
is 0.54 m/s2
15
A 400 N steel ball at rest is suspended by a rope from the ceiling. The tension is
800 N
400 N
zero
200 N
16
A book rests on a table, exerting a downward force on the table. The reaction to this force is
the force of the Earth on the book
the inertia of the book
the force of the Earth on the table
the force of the table on the book
17
A 5 kg shark is lowered with a downward acceleration of 2.8 m/s
2
. The tension in the rope is
35 N, down
35 N, up
49 N, up
14 N, up
18
The inertia of a body tends to cause the body to
fall toward the Earth
resist any change in its motion
speed up
slow down
19
The reaction force does not cancel the action force because
they are in the same direction
the action force is greater than the reaction force
reaction force exists only after the action force is removed
they act on different bodies
20
Mass differs from weight in that
weight is a force and mass is not
the mass of an object is always more than its weight
all objects have weight but some lack mass
mass can only be expressed in the metric system
