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Duplicate of Newton's Laws Flashcards | StudBud
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Duplicate of Newton's Laws
Duplicate of Newton's Laws
32 terms
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Physics review of Newton's Laws
Flashcards
32 cards
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Practice quiz
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Questions
32
Answers
1
What is the magnitude of the net force in this situation if each force is 50 N?
50 N
200 N
0 N
150 N
2
An object is in equilibrium if the net force on the object is _____.
Positive
Neutral
Negative
Zero
3
What is a net force?
The magnitude of acceleration
Always zero
The magnitude of velocity
The sum of the forces acting on the system
4
A type of physical model that represents the forces acting on a system is called a(n) _____.
Acceleration Diagram
Free-Body Diagram
Inertia Diagram
Force-Body Diagram
5
True or False: All forces exist in interaction pairs.
True
False
6
If you were labeling a force of a hand pushing up on a ball, how would you label it?
Fh,b
Fg
Fb,h
F
7
What is the rate of acceleration of this book?
19.8 m/s2
0 m/s2
It's impossible to tell
9.8 m/s2
8
In an elevator, which of the following statements is true about your apparent weight?
It decreases when you're accelerating upwards
It is the same as your actual weight at constant velocity
It increases when you're accelerating downwards
It decreases when you're moving at a constant velocity
9
What are units of acceleration?
m/s
N/kg
kg
m/s2
10
Interaction pairs of forces are equal in _____________, and opposite in _______________.
both of these
direction; magnitude
magnitude; direction
neither of these
11
To find the weight of an object, we use the equation...
Weight is equal to mass, there is no equation
a = F/m
FA,B = -FB,A
F = mg
12
Weight is ___________.
The gravitational force experienced by an object
The amount of matter in an object
Acceleration of an object
Velocity of an object
13
What are units of force?
(kg*m)/s2
m/s2
m/s
N
14
Which direction is the book accelerating?
right
down
up
left
15
Acceleration is the result of a(n) __________________ acting on an object.
position
equilibrium
velocity
unbalanced force
16
If the box has a mass of 6.0 kg, what will the normal force of the table on the box be?
9.8 N
1.1 x 102 N
8.8 x 101 N
5.0 x 101 N
17
A push or pull is called a...
Speed
Velocity
Distance
Force
18
In this image F
1
is equal to 100 N and F
2
is equal to 150 N. What is the net force? Right is +
-50 N
250 N
0 N
50 N
19
Which statement regarding this image is true?
The table does not interact with the soccer ball.
The soccer ball is part of two interaction pairs.
Earth does not exert a force on the ball.
Earth does not exert a force on the table.
20
The more massive an object, the __________ force needed to accelerate it.
less
more
21
A magazine rests on top of a TV remote on a table. Which is NOT exacting a force on the remote?
The magazine
Gravity
Your hand
The table
22
What are units of mass?
m
m/s2
kg
m/s
23
What is an object's resistance to change in velocity called?
Gravity
Force
Acceleration
Inertia
24
What direction is the net force on the book in this situation?
down
left
right
up
25
Which direction is the book accelerating?
up
right
down
there is no acceleration
26
True or False: Interaction pairs act on the same object.
False
True
27
Force is a vector, so it has...
Both magnitude and direction
None of these
Direction only
Magnitude only
28
Which of these statements is true?
Weight is the measure of the amount of matter in an object.
Weight can change when acceleration due to gravity changes.
Weight is a measure of inertia.
Mass is a force.
29
The _____ is the perpendicular contact force exerted by a surface or another object.
accelerated force
equal force
normal force
perpendicular force
30
What is the magnitude of the net force in this situation if each force is 50 N?
150 N
0 N
50 N
200 N
31
What are the units of velocity?
m/s2
kg
m
m/s
32
The normal force is always _________ to the plane of contact.
perpendicular
parallel
not related
equal
