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WorksheetsAP Physics Review #1
Total questions: 26
Worksheet time: 24mins
A circular object of radius R has an angular velocity of k rad/s. The angular velocity at a point R/2 is:
2k rad/s
k/2 rad/s
k2 rad/s
k rad/s
Given the FBD, which of the following must be true?
The frictional force must be accelerating the system to the left.
The box must be accelerating to the right.
The box must be moving to the right.
The FBD is incorrectly drawn. This situation isn't possible
Which of the following statements is true about the image above?
The accelerations of the blocks will vary according to their mass
The net force acting on each block is the same
The blocks will experience the same acceleration
The 3m box will eat the 2m and the m boxes
Which of the following is not true about the system?
T3 is equal to the scalar sum of the magnitudes of T2 and T1
T3 is equal in magnitude to Fg
The x- components of the T1 and T2 and equivalent but in opposite directions
The system is in equilibrium.
A man standing on a scale in an elevator notices that the scale reads 40 newtons greater than his normal weight. Which type of movement of the elevator could cause this greater-than-normal reading?
accelerating upward
accelerating downward
moving upward at a constant speed
moving downward at a constant speed
A man weighing 800 Newtons is standing in an elevator. If the elevator rises with an acceleration of 0.5 meters per second2, the force exerted by the elevator on the man will be
400 N
800 N
1200 N
1000 N
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?
The magnitude of the horizontal component of F is:
Fx =30 N
Fx =40 N
Fx =3 N
Fx =4 N
The magnitude of the vertical component of F is:
Fy =30 N
Fy =40 N
Fy =4 N
Fy =3 N
If a system is in static equilibrium, it must have the following 2 conditions:
∑τ=0
Constant acceleration
∑F=0
Positive forces only
A horizontal, uniform board of weight 125 N and length 4 m is supported by vertical chains at each end. A person weighing 500 N is sitting on the board. The tension in the right chain is 250 N. What is the tension in the left chain?
250 N
375 N
500 N
625 N
875 N
Rank the magnitude of the torque the signs exert about the point at which the rod is attached to the side of the building. From Greatest to Least.
B
D
C
A
A block of weight W is pulled along a horizontal surface at constant speed v by a force F, which acts at an angle Θ with the horizontal, as shown. The normal force exerted on the block by the surface has magnitude_____.
greater than W
greater than 0 but less than W
equal to W
0
Taylor wants to test the effect of friction. She places a block on a plank and raises one end so that the plank is inclined. What is the maximum angle that incline can have before the block begins to accelerate if the coefficient of friction is 0.7?
46°
10°
35°
44°
Rank the tensions experienced by the strings.
TA > TB > TC
TB > TA = TC
TB > TC > TA
Cannot be determined
Refer to the picture to answer the following question. If M = 1kg, what is the acceleration of the masses? Assume the surface is frictionless.
a = 4.67m/s2
a = 6.67m/s2
a = 2.67m/s2
a = 1.33m/s2
Refer to the picture to answer the following question. If M = 1kg, what is the tension in the rope? Assume the surface is frictionless.
FT = 20.0N
FT = 0.67N
FT = 10.7N
FT = 13.3N
A pendulum swinging with a maximum amplitude of π/6 has a period of T. If the maximum amplitude is increased to π/3, what is the new period of the pendulum?
T/4
T/2
T
2T
I. period
II. amplitude
III. mass
A spring-block simple harmonic oscillator is set up so that the oscillations are vertical. The period of the motion is T. If the spring and block are taken to the surface of the Moon, where the gravitational acceleration is 1/6 of its value here, then the vertical oscillations will have a period of
6T
3T
6T
T
A block with a mass of 20 kg is attached to a spring with a spring constant k = 50 N/m. What is the magnitude of the acceleration of the block when the spring is stretched 4 m from its equilibrium position?
4 m/s2
6 m/s2
8 m/s2
10 m/s2
A block with a mass of 4 kg is attached to a spring on the wall that oscillates back and forth with a frequency of 4 Hz and an amplitude of 3 m. What would the frequency be if the block were replaced by one with one-fourth the mass and the amplitude of the block is increased to 9 m?
4 Hz
8 Hz
12 Hz
24 Hz
