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WorksheetsAP Physics-We Won't Let You Fail
Total questions: 55
Worksheet time: 45mins
Name
Class
Date
1.
Add the following vectors and determine the resultant.4.0 m/s, 90 deg and 2.0 m/s, 0 deg and 2.0 m/s, 210 deg
a)
5.21m/s, 84.9 deg
b)
3.01 m/s, 84.9 deg
c)
3.01m/s, 52.3 deg
d)
6.05m/s, 21.2 deg
2.
Add the following vectors and determine the resultant.3.0 m/s, 45 deg and 5.0 m/s, 135 deg and 2.0 m/s, 60 deg
a)
3.56m/s, 93.2 deg
b)
2.45m/s, 23.0 deg
c)
7.40m/s, 87.3 deg
d)
7.40m/s, 93.2 deg
3.
Three forces act on a point: 3 N at 0°, 4 N at 90°, and 5 N at 217°. What is the net force?
a)
2.8 N
b)
3.6 N
c)
1.4 N
d)
20.5 N
4.
A laser beam is aimed 15.95° above the horizontal at a mirror 11,648 m away. It glances off the mirror and continues for an additional 8570. m at 11.44° above the horizon until it hits its target. What is the resultant displacement of the beam to the target?
a)
The target of the laser beam is 20,200 m away an angle of elevation of 14.04°.
b)
The target of the laser beam is 20,000 m away an angle of elevation of 12.08°.
c)
The target of the laser beam is 10,568 m away an angle of elevation of 45.25°.
d)
The target of the laser beam is 20,200 m away an angle of elevation of 14.07°.
5.
Add the following vectors and determine the resultant.
3.0 m/s, 45 deg and 5.0 m/s, 135 deg
3.0 m/s, 45 deg and 5.0 m/s, 135 deg
a)
3.56 m/s, 180 deg
b)
2.67 m/s, 134 deg
c)
5.83 m/s, 104 deg
d)
1.25 m/s, 87 deg
6.
A 3 kg box tied to a 2 kg box tied to a 1 kg box are all pulled by a string attached to the front of the 3 kg box. The are being pulled with a force of 18 N. Which of the following is a correct comparisons of the tension in front of each box?
a)
T1 > T2 > T3
b)
T1 = T2 = T3
c)
T1 > T2 = T3
d)
T3 > T2 > T1
7.
The force needed to move a 50 kg crate on the carpet with the coefficent of static friction of 0.5 is?
a)
25 N
b)
250 N
c)
50 N
d)
500 N
8.
A force F is acting on an object of mass m, giving it an acceleration of a. What is the acceleration if the mass is halved and the force quadrupled?
a)
it is divided by eight
b)
it is multiplied by eight
c)
it is divided by two
d)
it stays the same
9.
Free Body diagrams do all of the following EXCEPT:
a)
calculates the resultant force
b)
illustrate all the forces within a system
c)
helps calculate the net force
d)
accounts for all forces acting on an object
10.
Dynamics is:
a)
the description of motion
b)
the study of what results from forces
c)
what causes motion
d)
the combination of kinematics and circular motion
11.
The moment of inertia:
a)
is synonymous with mass
b)
does not depend on where the mass is located
c)
resistance to a change in rotational inertia
d)
more resistance to change = less inertia
12.
How do you get the maximum torque?
a)
longer lever arm and more force at an acute angle
b)
shorter lever arm with more force perpendicularly
c)
shorter lever arm and more force perpendicularly
d)
longer lever arm with more force perpendicularly
13.
The center of mass is:
a)
the exact middle
b)
the heaviest part
c)
the point at which you can balance with one finger
d)
the idea that mass is concentrated throughout
14.
The “no slip conditions” include all of the following EXCEPT:
a)
v = r*omega
b)
ac = (v^2)r
c)
s=r*theta
d)
a=r*alpha
15.
The rotational equivalent to d (distance), v (velocity) and a (acceleration) are?
a)
m, m/s, m/s^2
b)
theta, omega (lowecase), alpha
c)
x, x/t, alpha
d)
rho, mu, Omega
16.
In a frictionless ice rink, a 0.249 kg hockey puck, initially at rest, is hit by a 0.375 kg hockey stick. After the collision, the hockey puck moves to the left with a velocity of 0.125 m/s and the hockey stick continues to move forward with a velocity of 0.651 m/s to the left. What speed was the hockey stick initially moving?
a)
0.734 m/s
b)
1.06 m/s
c)
0.583 m/s
d)
0.916 m/s
17.
A 534 kg X-Wing flies into the stationary 18,423 kg Death Star at a speed of 159 km/s. The X-Wing then flies at a speed of 137 km/s. What speed is the Death Star moving?
a)
22 km/s
b)
4,605 m/s
c)
638 m/s
d)
2,146 m/s
18.
Which collision are both momentum and kinetic energy conserved?
a)
Elastic Collisions
b)
Perfectly Inelastic Collisions
c)
Inelastic Collisions
d)
none of the above
19.
Impulse is NOT:
a)
the change in momentum
b)
the product of Force x Time
c)
measured in N*s
d)
a scalar quantity
20.
Dr. Hodum hits a 0.075 kg golf ball, giving it a speed of 90 m/s. What is the change of momentum of the golf ball?
a)
7.25 kg*m/s
b)
6.25 kg*m/s
c)
62.5 kg*m/s
d)
1200 kg*m/s
21.
Which
Resistors
are in a series?
Resistors
are in a series?
a)
C,E
b)
A,B,C,D
c)
A,B,D
d)
A, B
22.
In a series circuit______through each electrical component is the same.
a)
Voltage
b)
Amplitude
c)
Current
d)
Ohms
23.
In a parallel cicruit______used by each electrical component is the same.
a)
Current
b)
Voltage
c)
Amplitude
d)
Ohms
24.
What is the current through the 45 ohm resistor?
a)
.067 Amps
b)
3 Amps
c)
.05 Amps
d)
.67 Amps
25.
What is the total resistance of the circuit?
a)
80 ohms
b)
45 ohms
c)
50 ohms
d)
75 ohms
26.
Coulomb's law says that the force between any two charges depends
a)
inversely on the product of the charges
b)
directly on the square of the distance between the charges
c)
directly on the product of the charges
d)
inversely on the square root of the distance between the charges
27.
Earthquakes are considered what type of wave?
a)
Mechanical
b)
Transverse
c)
Longitudinal
d)
Surface
28.
Two equally charged pith balls are 3 cm apart and repel each other with a force of 4×10-5 N. Compute the charge on each ball.
a)
2x10e-9
b)
2x10e9
c)
2.4x10-7
d)
3.2x10e-9
29.
A charge of +q is located 1.5 m to the right of point D. Where would you have to place a charge of +2q so the electric field at D would be zero?
a)
2.1 m left of D
b)
4.6 m left of D
c)
2.1 m right of D
d)
3.6 m left of D
30.
The electric field around an isolated electron has a certain strength 1 cm from the electron. The electric field strength 2 cm from the electron is______ as much.
a)
one fourth
b)
half
c)
twice
d)
four times
31.
When the distance between two charges is halved, the electrical force between them:
a)
doubles
b)
halves
c)
quadruples
d)
reduces to one fourth
32.
In a Velocity vs Time Graph how do you find displacement?
a)
Math
b)
Area under the graph
c)
Slope of the line
d)
It’s a trap!
33.
What is an object's horizontal acceleration (no air resistance)?
a)
9.8m/s
b)
-9.8m/s
c)
12m/s
d)
0m/s
34.
In a Distance vs Time graph what is the slope? In a Velocity vs Time? Choose the most correct answer.
a)
Position/Time, Velocity/Time
b)
Acceleration, Velocity
c)
Distance Traveled, Change in Velocity
d)
Velocity, Acceleration
35.
If a boomerang is thrown 20m in a straight line and returns exactly to the spot it was thrown what is its displacement?
a)
20m
b)
40m
c)
0m
d)
-20m
36.
In Kinematics which direction(s) does a thrown baseball accelerate if their is no air resistance?
a)
Y-Plane
b)
X-Plane
c)
Z-Plane
d)
X and Y Planes
37.
Which of these has the greatest centripetal equation?
a)
Large Velocity, Large Radius
b)
Small Velocity, Small Radius
c)
Large Velocity, Small Radius
d)
Small Velocity, Large Radius
38.
A seesaw with mass x is perfectly balanced with a fulcrum in the center. If mass x changes uniformly does the net torque change?
a)
Yes, because the Gravitational force increases with more mass, and torque is related to Force
b)
No, because the net torque is still zero despite increases in one of the individual components.
c)
No, because it is balanced that means net torque is zero, a uniform increase in weight keeps it balanced keeping net torque at zero
d)
Yes, any increase in weight will increase torque
39.
Does a bridge anchored resting on two pillars have any torque?
a)
No, it isn't moving
b)
Yes, but it is at equilibrium
c)
Yes, but it will soon break because of the torque
d)
No, Bridges can't have torque
40.
What force does not cause any torque?
a)
Force perpendicular to the fulcrum, and not on the fulcrum
b)
Force horizontal to the fulcrum, and not on the fulcrum
c)
Force perpendicular to the fulcrum, and slightly off center of the fulcrum
d)
Forces at a 45 degree angle to the fulcrum, and not on the fulcrum
41.
Where is centripetal acceleration pointing if a car is driving in a circle with a constant speed? Why?
a)
Tangent to the circle, the car must be accelerating in the direction it's pointed
b)
There is none, since speed is not changing there is no acceleration
c)
Towards the center, the velocity vector is constantly changing direction, this leads the acceleration to be towards the center.
d)
Outward from the circle's center, something must counteract friction
42.
What is the difference in work(done on you) if you walked up a mountain or a car drove you up the same mountain?
a)
Same, Your weight doesn't change and the distance traveled says the same, therefore the work is the same.
b)
Car does more,The added weight of the car means more work is excerted upon you
c)
Walking does more, It takes longer, therefore more work is done
d)
Neither cause work, because their is no force there is no work.
43.
What approach is used to solve a problem on how much work an archer does pulling a bowstring back uniformly, if you know the mass, distance, and forces?
a)
Kinematics
b)
Momentum
c)
Work-Energy Theorem (WNC=(KE) + (PE))
d)
Work (W=Fx)
44.
Conservative Force:________:: Nonconservative Force:________
a)
Friction, Gravity
b)
Propeller, Friction
c)
Gravity, Spring
d)
Spring, Propeller
45.
If an object is resting on earth’s surface is the earth doing any work? Why?
a)
Yes, because a force is exerted due to gravity, and natural force pushes upward.
b)
No, because the object doesn't move
c)
Yes, because the gravitational constant is so large that despite not moving they are still growing significantly closer. Enough that substantial work is calculated.
d)
No, the earth is incapable of work because of its large size
46.
Potential Energy is a result of _______ in its simplest form.
a)
An interaction
b)
Height
c)
Gravity
d)
A single object storing it
47.
A tube is open at both ends with the air oscillating in the 4th harmonic. How many displacement nodes are located within the tube?
a)
2
b)
3
c)
4
d)
5
48.
As sound travels from steel into air, both its speed and its:
a)
wavelength increase
b)
wavelength decrease
c)
frequency increase
d)
frequency remain unchanged
49.
If the frequency of sound wave is doubled, the wavelength:
a)
halves and the speed remains unchanged.
b)
doubles and the speed remains unchanged.
c)
halves and the speed halves.
d)
doubles and the speed doubles.
50.
Pitch is lowered when:
a)
Wavelength is increased
b)
The period is shorter
c)
Wavelength is increased
d)
The sound is louder
51.
The speed of a sound wave is affected mainly by the:
a)
Loudness of the sound wave
b)
Pitch of the sound wave
c)
Properties of the medium
d)
Intensity of the sound wave
52.
The antinode is also the:
a)
Node number
b)
Crest
c)
Harmonic number
d)
Hertz amount
53.
A rope is attached to the wall at a fixed point. When a wave is reflected what happens?
a)
The crest and trough is inverted
b)
There is no change
c)
The amplitude increases
d)
The reflection is smaller and the amplitude decreases
54.
When waves reflect the angle of incidence equals the angle of:
a)
Reflection
b)
Wave fronts
c)
Direction
d)
Amplitude
55.
What type of waves travel in a perpendicular direction?
a)
Longitudinal Waves
b)
Mechanical Waves
c)
Transverse Waves
d)
Compression Waves
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