AP Physics 1 Midterm Exam Review| Questions and Verified Answers (Latest 2023/ 2024)
QUESTION
A ball of mass 0.4 kg is initially at rest on the
... [Show More] ground. It is kicked and leaves the kicker's foot with a speed of 5.0 m/s in a direction 60 above the horizontal. The magnitude of the impulse imparted by the ball to the foot is most nearly
a. 1 Ns
b. √3Ns
c. 2 Ns
d. (2/√3)Ns
e. 4 Ns
Answer:
c. 2 Ns
QUESTION
A ball of mass m and momentum p has kinetic energy equal to which of the following?
a. (1/2)(p^2/m)
b. p^2/m
c. 2(p^2/m)
d. (1/2)(m/p^2)
e. 2(m/p^2)
Answer:
a. (1/2)(p^2/m)
QUESTION
A box is given a sudden push up a ramp. Friction between the box and the ramp is not negligible. Which of the following diagrams best represents the directions of the actual forces acting on the box as it moves upward after the push?
(see pictures)
Answer:
a
QUESTION
A child has a toy tied to the end of a string and whirls the toy at constant speed in a horizontal circular path of radius R. The toy completes each revolution of its motion in a time period T. What is the magnitude of the acceleration of the toy?
a. Zero
b. 4𝜋^2𝑅/t^2
c. 𝜋𝑅/T^2
d. 𝑔
e. 2𝜋𝑔
Answer:
b. 4𝜋^2𝑅/t^2
QUESTION
A force of constant magnitude F and
fixed direction acts on an object of mass
m that is initially at rest. If the force acts
for a time interval ∆𝑡 over a
displacement ∆𝑥, what is the magnitude
of the resultant change in the linear
momentum of the object?
a. 𝐹∆𝑡
b. 𝐹∆𝑥
c. 𝐹∆𝑡/𝑚
d. 𝐹∆𝑥/𝑚
e. 𝑚𝐹∆𝑡
Answer:
a. 𝐹∆𝑡
QUESTION
The graphs above represent the position
x, velocity v, and acceleration a as a
function of time t for a marble moving in
one dimension. Which of the following
could describe the motion of the marble?
(see pictures)
a. Rolling along the floor and then
bouncing off a wall
b. Rolling down one side of a bowl
and then rolling up the other side
c. Rolling up a ramp and then
rolling back down
d. Falling and then bouncing
elastically off a hard floor
Answer:
c. Rolling up a ramp and then
rolling back down
QUESTION
A new planet is discovered that has twice the Earth's mass and twice the Earth's radius. On the surface of this new planet, a person who weighs 500 N on Earth would experience a gravitational force of
a. 125 N
b. 250 N
c. 500 N
d. 1000 N
e. 2000 N
Answer:
b. 250 N
QUESTION
A planet of mass m orbits a star of mass M where m << M. The orbit is circular, its radius r, and its period T. True statements about the planet's orbit include which of the following?
I. The orbital speed equals 2𝜋𝑟/𝑇
II. The gravitational force equals 𝐺𝑀𝑚/𝑟^2
III. If the orbital radius r were greater, T would also be greater
a. I only
b. II only
c. I and III only
d. II and III only
e. I, II, and III
Answer:
e. I, II, and III [Show Less]