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WorksheetsAP Physics midterm review - Units 1,2,3
Total questions: 19
Worksheet time: 10mins
An object changes its velocity from V1 to V2 during a time interval Δt. Which of the following is the correct direction for the object’s acceleration?
Which of the following pairs of graphs shows the distance traveled versus time and the speed versus time for an object uniformly accelerated from rest?
A ball is thrown and follows the parabolic path shown above. Air friction is negligible. Point Q is the highest point on the path. Points P and R are the same height above the ground. Which of the following diagrams best shows the direction of the acceleration of the ball at point P?
A ball is thrown and follows the parabolic path shown above. Air friction is negligible. Point Q is the highest point on the path. Points P and R are the same height above the ground. Which of the following best indicates the direction of the velocity, if any, on the ball at point Q?
v = 0 m/s at point Q
At time t = 0, car X traveling with speed v0 passes car Y. which is just starting to move. Both cars then travel on two parallel lanes of the same straight road. The graphs of speed v versus time t for both cars are shown above. Which of the following is true at time t = 20 seconds? Select two answers.
car Y is behind car X
car Y is passing car X
car Y is in front of car X
both cars have the same velocity
As a rocket moves away from the Earth's surface, the rocket's weight (i.e., FEarth on rocket)
increases.
decreases.
remains the same.
depends on how fast it is moving.
In the following problem, the word “weight” refers to the force a scale registers. If the Earth were to increase its rotating speed, but not change shape,
the weight of an object at the equator would increase.
the weight of an object at the equator would decrease.
the weight of an object at the North Pole would increase.
the weight of an object at the North Pole would decrease.
A hypothetical planet orbits a star with mass 4 times the mass of our sun. The planet’s orbital radius is the same as the Earth’s. Approximately how many Earth years does it take for the planet to complete one orbit?
21
21
1
2
A satellite of mass m moves in a circular orbit of radius R around a planet of mass M with speed v. Which of these must be true for the satellite? Choose two answers.
The net force on it is MR/v2
Its acceleration is GM/R
Its orbital velocity is (GM/R)1/2
Its orbital period is 2R/v
A ball of mass m is suspended from two strings of unequal length as shown below. The tensions T1 and T2 in the strings must satisfy which of the following relations?
T1 = T2
T1 > T2
T1 < T2
T1 + T2 = mg
A 2.0 kg block slides down a θ = 30.00 incline as shown above with an acceleration of 2.0 m/s2. Which of the following diagrams best represents the gravitational force W, the friction force f, and the normal force N that act on the block?
A 2.0 kg block slides down a θ = 30.00 incline as shown above with an acceleration of 2.0 m/s2. The magnitude of the friction force along the plane is most nearly:
2.5 N
5 N
6 N
10 N
When the frictionless system shown below is accelerated by an applied force of magnitude F, the tension (FT) in the strings between the blocks is:
2F
F
2/3 F
1/3 F
A uniform rope of weight 50 N is attached to a hook as shown below. A box of weight 100 N is attached to the rope. What is the tension in the rope?
50N throughout the rope.
100N throughout the rope.
150N throughout the rope.
It varies from 100 N at the bottom of the rope to 150 N at the top.
A ball is fastened to a string and is swung in a vertical circle. When the ball is at the highest point of the circle its velocity and acceleration directions are:
A ball with a mass m is fastened to a string and is swung in a vertical circle. When the ball is at the lowest point of the circle the tension in the string is:
mg
mg + ma
ma - mg
mg/ma
A child whirls a ball at the end of a rope, in a uniform circular motion. Which of the following statements is NOT true?
The speed of the ball is constant.
The velocity of the ball is constant.
The radius is constant.
The magnitude of the ball’s acceleration is constant.
Four particles have the following masses (in terms of m), speeds (in terms of v), and radii (in terms of r). Which two particles have the same centripetal force?
Particle 1
Particle 2
Particle 3
Particle 4
A penny is resting on a turntable. What is the force responsible for keeping the penny from sliding off?
normal force
gravitational force
static friction force
kinetic friction force
there is no force
