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AP Physics Newton's Laws Test Review Flashcards | StudBud
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AP Physics Newton's Laws Test Review
AP Physics Newton's Laws Test Review
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Review questions covering Newton's second law problems
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
What is the difference between
mass
and
weight
?
Weight is mass times g
They are the same
Mass can change, weight can not change
Mass is in Newtons, weight is in kilograms
2
Which is the correct metric unit for weight?
Newtons
m/s2
Kilograms
Pounds
3
What is the equation for calculating
kinetic
friction?
Ff = μkFN
Ff ≤ μkFN
Ff ≤ μsFN
Ff = μsFN
4
The definition of acceleration is:
Change in speed over time + direction
Change in speed over time
The same as speed
Speed + direction
5
On a free-body diagram the normal force points...
In the direction of movement or net force
Toward the center of the Earth
Perpendicular to the surface the object is on
Always straight up
6
What is the meaning of the word "theory" in science?
D
A
B
C
7
A helicopter lifts a car straight up. What is the net
horizontal
force on the car?
Equal to the weight of the car
0 N
-9.8 m/s2
Equal to the weight of the car + helicopter
8
Which free-body diagram for the block is correct?
A
D
B
C
9
Where is the tension greatest?
T4
T3
T1
T2
10
What is the equation for calculating
static
friction?
Ff ≤ μsFN
Ff = μkFN
Ff = μsFN
Ff ≤ μkFN
11
Three boxes are pulled to the right. What is the
net vertical acceleration
of the boxes?
-9.8 m/s2
0 m/s2
Depends on the force, F
Depends on the mass of the boxes
12
See picture. How does the weight of the box relate to the force pulling the box down the ramp?
The weight is the more than the force pulling the box
Impossible to tell without more information
The weight is the same as the force pulling the box
The weight is the less than the force pulling the box
13
If M
1
= 10 kg and M
2
= 20 kg, what is the tension T
1
? (Assume g = 10 m/s
2
)
300 N
30 N
10 N
100 N
14
What are the two types of friction?
Sliding and rolling
Forward and backward
Kinetic and static
Pushing and pulling
15
The box shown has a μ
s
of 0.50. If it weighs 100 N how much force is required to move it?
100 N
50 N
25 N
200 N
16
If the box shown has a mass of
m
, and the coefficient of friction is μ
k
, what is the net force?
ΣF = Tcos(θ) - μkFN
ΣF = T - μkFN
ΣF = T - μk
ΣF = Tcos(θ) - μk
17
In the picture shown, how does the normal force compare to the weight of the box?
The normal force is more than the weight
The normal force is less than the weight
Impossible to determine without more information
The normal force is the same as the weight
18
On a free-body diagram the force of weight points...
Toward the center of the Earth
Always straight up
In the direction of movement or net force
Perpendicular to the surface the object is on
19
On a free-body diagram the force of friction points...
Perpendicular to the surface the object is on
In the direction of movement or net force
Opposite to the direction of movement or net force
Toward the center of the Earth
20
The definition of velocity is:
The same as speed
Change in speed over time + direction
Change in speed over time
Speed + direction
