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Newton's Laws of Motion Flashcards | StudBud
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Newton's Laws of Motion
Newton's Laws of Motion
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Physics 1st and 2nd Laws of Motion
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
If zero net force is applied to an object, it will
continue in the same direction but slow down
slow down and eventually come to a stop
continue with no change in speed or direction.
continue with the same speed but change direction
2
Which property of an objects impacts air resistance the most?
the surface area of the object
the weight of the object
the mass of the object
the color of the object
3
What net force is required to accelerate 20 kg object 5 m/s
2
?
4 N
100 N
0.25 N
100 m/s
4
When you are standing on the floor, the floor pushes back on you this force is called
normal
friction
gravity
applied
5
A 25 N force is applied in the opposite direction of a 45 N force, what is the net force?
Gravity
Not enough information
70 N
20 N
6
Friction between an object and the atmosphere is referred to as
normal force
air resistance
terminal velocity
tension
7
Which is not true regarding acceleration due to gravity?
it is signified by the letter "g"
it equals 9.8 m/s2
all are true
it increase object's speed in an upward direction
8
You kick a ball at rest, it ends up traveling 20 m/s after 4 seconds, what is its acceleration?
80 m/s
80 m/s2
5 m/s2
5 m/s
9
As a football flies through the air, what forces are acting upon it?
no forces are acting on it
both air resistance and gravity
air resistance
gravity
10
The downward force that can be calculated by multiplying your mass by the accel. due to gravity
weight
friction
tension
normal force
11
A horizontal line on a speed vs time graph means that the object
is not moving
is decelerating
is moving at a constant speed
is accelerating
12
A downward slope on a speed vs position graph represents
no motion
deceleration
acceleration
constant speed
13
A horizontal line on a position vs time graph means
the object is moving back to the starting point
the object is not moving
the object is moving slowly
the object is moving very fast
14
If an object falls for 3 seconds, what is its average speed?
14.7 m/s
9.8 m/s
19.6 m/s
29.4 m/s
15
What two forces are in balance as an object reaches terminal velocity?
weight and normal force
air resistance and weight
gravity and normal force
air resistance and gravity
16
Inertia of an object is related to its
Acceleration
Mass
Speed
Velocity
17
If the weight of an object sitting motionless is 12 N, what is the size of the normal force?
1.22 N
0 N
12 N
117.6 N
18
The slope on a position versus time graph represents
velocity
speed
acceleration
force
19
A moving monster truck is harder to stop than a basketball moving at the same speed due to
the monster truck having more inertia
the basketball having more inertia
the monster truck having more acceleration
the basketball having more mass
20
If an object is accelerated, all of the following could occur except
continue in the same direction
increase in speed
decrease in speed
change directions
21
The slope on a speed vs time graph represents
change in position
speed
acceleration
time
22
An object is dropped and falls for 2 seconds. What is its speed at that time?
29.4 m/s
4.9 m/s
9.8 m/s
19.6 m/s
23
When net force is zero, or the forces are at equilibrium, an object's acceleration
is decreased
is zero
is increased
24
Which of the following motions would not be caused by the application of a force?
a car coming to a sudden stop
a car taking off from a stop light
a car rounding a corner
a car moving at constant speed
25
When you throw a ball upward it comes to rest for an instant, at that point
its speed is zero
its acceleration is zero
its mass is zero
its force is zero
