Physics Semester 1 Practice Questions with
Detailed Verified Answers
A bowling pin is thrown vertically upward such that it
rotates as it moves through the air, as shown in the figure.
Initially, the center of mass of the bowling pin is moving
upward with a speed vi of 10 ms. The maximum height of
the center of mass of the bowling pin is most nearly...
✓✓ vi^2/2g
A ball is released from rest from the twentieth floor of a
building. After 1 s, the ball has fallen one floor such that it
is directly outside the nineteenth-floor window. The floors
are evenly spaced. Assume air resistance is negligible.
What is the number of floors the ball would fall in 3s after it
is released from the twentieth floor?
✓✓ 7 to 10 floors
An object is released from rest near a planet's surface. A
graph of the acceleration as a function of time for the
object is shown for the 4 s after the object is released
(constant acceleration of -5m/s^2 for 4 s). The positive
direction is considered to be upward. What is the
displacement of the object after 2 s?
✓✓ -10 m
,A student wants to study the motion of an object that has
a constant acceleration. Which of the following
experiments could the student conduct to provide the
best situations in which an object has a constant
acceleration? Select two answers.
✓✓ Release a ball from rest near Earth's surface,
Release a cart from rest such that it travels down an
incline of 40°40° with respect to the ground
A motion sensor is used to create the graph of a student's
horizontal velocity as a function of time as the student
moves toward and away from the sensor, as shown
above. The positive direction is defined as the direction
away from the sensor. Which of the following describes
the student's final position xf in relation to the starting
position x0 and the student's average horizontal
acceleration ax between 0.0 s and 3.0s?
(Graph starts (0,0), moves linearly to (0.5, 1.0), then
constant to (1.25,1.0), decreasing to (1.5,0), constant to
(2.0,0), decreasing to (-.5, 2.25), constant to (3.0,-.5),
increasing to (3.25,0), constant to (4,0), then ends)
✓✓ Position xf is farther away from the sensor than
x0, and ax is negative. (**The graph shows 0s-4s, but
you only need 0s-3s**)
Object 1 and object 2 travel across a horizontal surface,
and their horizontal velocity as a function of time is shown
in the graph. (Object 1: y=-10x+40, Object 2: y=10x) Which
, of the following statements is correct about the two-
object system?
✓✓ After 2s , object 1 travels a greater distance
than object 2 travels.
An object travels along a straight line across a horizontal
surface, and its motion is described by the velocity versus
time graph shown in the figure.
(y=2x; x=0-x=5) Which of the following methods will
determine the total displacement of the object between
0 s and 5 s? Select two answers.
✓✓ Finding the area bound by the horizontal axis
and the curve from 0 s to 5 s, Using Average
Speed=total distance/total and multiplying the
average speed of 5 ms by a total time of 5 s
A student is provided with a battery-powered toy car
that the manufacturer claims will always operate at a
constant speed. The student must design an experiment in
order to test the validity of the claim. Which of the
following measuring tools can the student use to test the
validity of the claim? Select two answers.
✓✓ Photogates placed at the beginning, end, and
at various locations along the track that the car
travels on, A meterstick to measure the distance of
the track that the car travels on
Detailed Verified Answers
A bowling pin is thrown vertically upward such that it
rotates as it moves through the air, as shown in the figure.
Initially, the center of mass of the bowling pin is moving
upward with a speed vi of 10 ms. The maximum height of
the center of mass of the bowling pin is most nearly...
✓✓ vi^2/2g
A ball is released from rest from the twentieth floor of a
building. After 1 s, the ball has fallen one floor such that it
is directly outside the nineteenth-floor window. The floors
are evenly spaced. Assume air resistance is negligible.
What is the number of floors the ball would fall in 3s after it
is released from the twentieth floor?
✓✓ 7 to 10 floors
An object is released from rest near a planet's surface. A
graph of the acceleration as a function of time for the
object is shown for the 4 s after the object is released
(constant acceleration of -5m/s^2 for 4 s). The positive
direction is considered to be upward. What is the
displacement of the object after 2 s?
✓✓ -10 m
,A student wants to study the motion of an object that has
a constant acceleration. Which of the following
experiments could the student conduct to provide the
best situations in which an object has a constant
acceleration? Select two answers.
✓✓ Release a ball from rest near Earth's surface,
Release a cart from rest such that it travels down an
incline of 40°40° with respect to the ground
A motion sensor is used to create the graph of a student's
horizontal velocity as a function of time as the student
moves toward and away from the sensor, as shown
above. The positive direction is defined as the direction
away from the sensor. Which of the following describes
the student's final position xf in relation to the starting
position x0 and the student's average horizontal
acceleration ax between 0.0 s and 3.0s?
(Graph starts (0,0), moves linearly to (0.5, 1.0), then
constant to (1.25,1.0), decreasing to (1.5,0), constant to
(2.0,0), decreasing to (-.5, 2.25), constant to (3.0,-.5),
increasing to (3.25,0), constant to (4,0), then ends)
✓✓ Position xf is farther away from the sensor than
x0, and ax is negative. (**The graph shows 0s-4s, but
you only need 0s-3s**)
Object 1 and object 2 travel across a horizontal surface,
and their horizontal velocity as a function of time is shown
in the graph. (Object 1: y=-10x+40, Object 2: y=10x) Which
, of the following statements is correct about the two-
object system?
✓✓ After 2s , object 1 travels a greater distance
than object 2 travels.
An object travels along a straight line across a horizontal
surface, and its motion is described by the velocity versus
time graph shown in the figure.
(y=2x; x=0-x=5) Which of the following methods will
determine the total displacement of the object between
0 s and 5 s? Select two answers.
✓✓ Finding the area bound by the horizontal axis
and the curve from 0 s to 5 s, Using Average
Speed=total distance/total and multiplying the
average speed of 5 ms by a total time of 5 s
A student is provided with a battery-powered toy car
that the manufacturer claims will always operate at a
constant speed. The student must design an experiment in
order to test the validity of the claim. Which of the
following measuring tools can the student use to test the
validity of the claim? Select two answers.
✓✓ Photogates placed at the beginning, end, and
at various locations along the track that the car
travels on, A meterstick to measure the distance of
the track that the car travels on
