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AP Physics - Spring Midterm Review - FLS 2019

Total questions: 49

Worksheet time: 47mins

Name
Class
Date
1.
On this digital scale, which digit is the uncertain digit?
a)
1
b)
2
c)
6
d)
4
2.
What is the correct SI unit for mass?
a)
Kilograms
b)
newtons
c)
pounds
d)
grams
3.
The SI unit for temperature is __?__.
a)
degree fahrenheit  (° F)
b)
degree celsius  (° C)
c)
kelvin  (K)
d)
degree centigrade  (°C)
4.

The SI unit for time is the __?__.

a)

hours (h)

b)

liter (L)

c)

gram (g)

d)

second (s)

5.

What SI unit is used to measure length?

a)

meters

b)

liters

c)

centimeters

d)

kilograms

6.
What is the base unit for measuring temperature?
a)
Fahrenheit 
b)
Celsius
c)
Kelvin
d)
degrees
7.
This variable in an experiment is the one being deliberately changed by the scientist. 
a)
dependent variable
b)
independent variable
c)
data
d)
control group
8.
In a controlled experiment, how many independent variables can be worked with at a time? 
a)
one
b)
none
c)
two or more
d)
how ever many makes sense.
9.

A train travels 6 meters in the first second of travel, 6 meters again during the second second of travel, 6 meters again during the third second. What's the train's acceleration ?

a)

0 m/s2

b)

6 m/s2

c)

12 m/s2

d)

18 m/s2

10.

A car starts from rest and after 7 seconds it is moving at 42 m/s. What is the car’s average acceleration?

a)

0.17 m/s2

b)

1.67 m/s2

c)

6 m/s2

d)

7 m/s2

11.
A dog runs with an initial speed of 7.5 m/s to a stop in 15 seconds.  What is the dog's acceleration?
a)
-7.5 m/s
b)
-7.5 m/s2
c)
-0.5 m/s2
d)
7.5 mi//hr
12.
A car is traveling at 21.0 m/s. It slows to a stop at a constant rate over 5.00 s. How far does the car travel during those 5.00 seconds before it stops? 
a)
4.20 m
b)
52.5 m
c)
105 m
d)
158 m
13.

A ball is thrown downward from the top of a roof with a speed of 25 m/s. After 2 s, its velocity will be:

a)

19.6 m/s

b)

-5.4 m/s

c)

-44.6 m/s

d)

44.6 m/s

14.
A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
15.
How much time would it take for an object to fall 4.7 meters?
a)
0.959 s
b)
4.79 s
c)
0.979 s
16.
If a car is traveling forward at 15 m/s, how fast will it be going in 1.2 seconds if the acceleration is -10 m/s2?
a)
27 m/s
b)
3 m/s
c)
-27 m/s
d)
-3 m/s
17.
An object with an initial velocity of 3.50 m/s moves east along a straight and level path. The object then undergoes a constant acceleration of 1.80 m/s2 east for a period of 5.00 s. How far does the object move while it is accelerating?
a)
6.30 m
b)
17.5 m
c)
27.2 m
d)
40.0 m
18.
The graph respresents
a)
no motion
b)
constant velocity
c)
increasing velocity
d)
decreasing velocity
19.
At what time did runner A pass runner B?
a)
0 seconds
b)
1 second
c)
2 seconds
d)
3 seconds
20.
Which graph represents zero acceleration (constant velocity)?
a)
A
b)
B
c)
C
d)
D
21.
Who had the greatest average speed after 100 seconds?
a)
Mike
b)
Katelyn
c)
Alex
d)
They had the same average speed
22.
What is happening at C?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
23.

If there is no friction, then the acceleration would be equal to

a)

mg

b)

sin(θ)mg

c)

g

d)

sin(θ)g

24.
Assuming both objects are at rest, which object is more massive? M1 or M2?
a)
M1 is more massive
b)
M2 is more massive
c)
both M1 and M2 are the same mass
25.

A car travels up a hill at constant speed. Which of the following diagrams best represents the forces acting on the car at this instant?

a)
b)
c)
d)
26.

Three forces of equal magnitude act on the box shown. One force is upward, one downward, and one rightward. Which of the following statements must be true based on this information? Select two answers.

a)

The box must have a rightward component of velocity.

b)

The box has no vertical component of velocity.

c)

The acceleration of the box is directed to the right.

d)

The velocity of the box is changing with time.

27.

What are the two factors that affect the momentum of an object?

a)

speed and velocity

b)

time and mass

c)

distance and displacement

d)

mass and velocity

28.
When the speed of an object is doubled, its momentum
a)
remains unchanged in accord with the conservation of momentum.
b)
doubles
c)
quadruples
d)
decreases
29.

A 9300 kg railroad car traveling at a velocity of 5 m/s strikes a second boxcar that weighs 5000 kg at rest. The railroad car is brought to a sudden stop while the boxcar moves away from the collision. At what speed will the second boxcar move?

a)

18.6 m/s

b)

9.3 m/s

c)

7.5 m/s

d)

1.86 m/s

30.

A 0.15 kg mass moving at +26 m/s is slowed to a stop by a force of -390 N. How long does it take the force to stop the mass?

a)

0.01 s

b)

0.001 s

c)

0.02 s

d)

0.23 s

31.
Momentum is conserved in this type of collision
a)
elastic
b)
inelastic
c)
momentum is conserved in both types of collisions
32.
Two football players with mass 75 kg and 100 kg run directly toward each other with speeds of 6 m/s and 8 m/s respectively. If they grab each other as they collide, the combined speed of the two players just after the collision would be:
a)
2 m/s 
b)
3.4 m/s 
c)
4.6 m/s 
d)
7.1 m/s
33.

A hammer applies a force of 250 N over a time period of 0.10 seconds. What is the impulse of the hammer

a)

2.5 N*s

b)

2500 N*s

c)

250 N*s

d)

25 N*s

34.

The unit for Impulse is

a)

N/s

b)

N·s

c)

N

d)

m/s

35.
A solid sphere, solid cylinder, and a hollow pipe all have equal masses and radii. If the three of them are released simultaneously at the top of an inclined plane and do not slip, which one will reach the bottom first?
a)
cylinder
b)
pipe
c)
sphere
d)
They all reach the bottom at the same time.
36.
In order to do a lot of flips an Olympic diver would want:
a)
A high rotational inertia
b)
A low rotational inertia
c)
A low linear acceleration
d)
A low angular velocity
37.
The drive chain in a bicycle is applying a torque of 0.850 N ∙ m to the wheel of the bicycle. You can treat the wheel as a thin uniform hoop (or ring) with a mass of 0.750 kg and a radius of 33.0 cm. What is the angular acceleration of the wheel?
a)
10.4 rad/s²
b)
3.43 rad/s²
c)
5.20 rad/s²
d)
1.06 rad/s²
38.
If the translational velocity of an object is 3 m/s, and is located a distance of 2 m from the axis of rotation, what is the object's angular velocity?
a)
0.67 rad/s
b)
1.5 rad/s
c)
5 rad/s
d)
6 rad/s
39.
According to the Law of Conservation of Angular Momentum, if I (momentum of inertia) increases, what will happen to ω?
a)
Decrease
b)
Stay the same
c)
Increase
40.
The rotational equivalent to d (distance), v (velocity) and a (acceleration) are?
a)
m, m/s, m/s2
b)
θ, ω, α
c)
x, x/t, alphaα
d)
μ, Σ, τ
41.
A solid  metal bar is at rest on a horizontal frictionless surface. It is free to rotate about a vertical axis at the left end. The figures show forces of different magnitudes that are exerted on the bar at different locations. In which case does the bar's angular speed about the axis increase at the fastest rate?
a)
A
b)
B
c)
C
d)
D
42.

A 0.12-m-radius grinding wheel takes 5.5 s to speed up from 2.0 rad/s to 11.0 rad/s. What is the wheel's average angular acceleration?

a)

9.6 rad/s/s

b)

4.8 rad/s/s

c)

3.1 rad/s/s

d)

1.63 rad/s/s

43.
Two pendulums are in simple harmonic motion.  Pendulum A is longer than pendulum B.  Pendulum A has a larger mass than B.  The period of pendulum A is
a)
longer than pendulum B
b)
shorter than pendulum B
c)
the same as pendulum B
d)
not enough information
44.
A force of  30 N stretches a very light ideal spring 0.73 m from equilibrium. What is the force constant (spring constant) of the spring?
a)
41 N/m
b)
22 N/m
c)
34 N/m
d)
46 N/m
45.
A pair of trapeze performers at the circus is swinging from ropes attached to a large elevated platform. Suppose that the performers can be treated as a simple pendulum with a length of 16 m. Determine the period for one complete back and forth cycle.
a)
2 sec
b)
12 sec
c)
8 sec
d)
10 sec
46.
A pendulum is 0.75 meters long and has a period of 4.17 seconds. The Pendulum is on an unknown planet.  What is the gravity of the Unknown Planet?
a)
9.8
b)
3.4
c)
1.7
d)
Greater than 9.8
47.

Maximum kinetic energy of an oscillator occurs at ___

a)

Maximum Displacement from equilibrium

b)

Equilibrium

c)

half way between equilibrium and xmax

d)

Not given

48.

Maximum acceleration of an oscillator occurs at ___

a)

Maximum Displacement from equilibrium

b)

Equilibrium

c)

half way between equilibrium and xmax

d)

Not given

49.
What does the amplitude of a wave measure?
a)
direction
b)
amount of energy
c)
frequency
d)
wavelength

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