PHY 150 Practice Questions with Correct Answers.
For general projectile motion, which of the following best describes the horizontal
component of a projectile's velocity? Assume air resistance is negligible.
The horizontal component of a projectile's velocity remains a nonzero constant.
For general projectile motion, which of the following best describes the horizontal
component of a projectile's acceleration? Assume air resistance is negligible.
The horizontal component of a projectile's acceleration is zero.
For general projectile motion, which of the following best describes the vertical component
of a projectile's acceleration? Assume air resistance is negligible.
The vertical component of a projectile's acceleration remains a nonzero constant.
At what angle, above the horizon, should a cannon be fired in order for the cannon ball to
obtain the greatest horizontal range? Assume air resistance is negligible.
The cannon should be fired at an angle of 45° above the horizon.
A player kicks a soccer ball in a high arc toward the opponent's goal. When the soccer ball
reaches its maximum height, how does its speed at this point compare to its initial speed?
Assume air resistance is negligible.
The speed at its highest point is less than its initial speed.
A football player kicks a football in a field goal attempt. When the football reaches its
maximum height, what is the relationship between the direction of the velocity and
acceleration vectors? Assume air resistance is negligible.
, At the maximum height, the velocity and acceleration vectors are perpendicular to each other.
For a projectile launched horizontally, which of the following best describes the horizontal
component of a projectile's velocity? Assume air resistance is negligible.
The horizontal component of the projectile's velocity remains a nonzero constant.
For a projectile launched horizontally, which of the following best describes the vertical
component of a projectile's velocity? Assume air resistance is negligible.
The vertical component of the projectile's velocity continually increases.
A red water balloon is thrown horizontally from the top of a bridge. At the same instant, a
yellow water balloon is dropped off the bridge from the same height. Compare the time of
fall for the two balloons. Assume air resistance is negligible.
The two balloons hit the ground at the same time.
A pilot releases a package from a plane flying horizontally at a constant speed. When the
package reaches the ground below, what is the horizontal location of the plane with respect
to the package? Assume air resistance is negligible.
The plane will be located directly above the package.
A swimmer is determined to cross a river that flows due south with a strong current.
Initially, the swimmer is on the west bank desiring to reach a camp directly across the river
on the opposite bank. In which direction should the swimmer head?
The swimmer should swim northeast.
For general projectile motion, which of the following best describes the horizontal
component of a projectile's velocity? Assume air resistance is negligible.
The horizontal component of a projectile's velocity remains a nonzero constant.
For general projectile motion, which of the following best describes the horizontal
component of a projectile's acceleration? Assume air resistance is negligible.
The horizontal component of a projectile's acceleration is zero.
For general projectile motion, which of the following best describes the vertical component
of a projectile's acceleration? Assume air resistance is negligible.
The vertical component of a projectile's acceleration remains a nonzero constant.
At what angle, above the horizon, should a cannon be fired in order for the cannon ball to
obtain the greatest horizontal range? Assume air resistance is negligible.
The cannon should be fired at an angle of 45° above the horizon.
A player kicks a soccer ball in a high arc toward the opponent's goal. When the soccer ball
reaches its maximum height, how does its speed at this point compare to its initial speed?
Assume air resistance is negligible.
The speed at its highest point is less than its initial speed.
A football player kicks a football in a field goal attempt. When the football reaches its
maximum height, what is the relationship between the direction of the velocity and
acceleration vectors? Assume air resistance is negligible.
, At the maximum height, the velocity and acceleration vectors are perpendicular to each other.
For a projectile launched horizontally, which of the following best describes the horizontal
component of a projectile's velocity? Assume air resistance is negligible.
The horizontal component of the projectile's velocity remains a nonzero constant.
For a projectile launched horizontally, which of the following best describes the vertical
component of a projectile's velocity? Assume air resistance is negligible.
The vertical component of the projectile's velocity continually increases.
A red water balloon is thrown horizontally from the top of a bridge. At the same instant, a
yellow water balloon is dropped off the bridge from the same height. Compare the time of
fall for the two balloons. Assume air resistance is negligible.
The two balloons hit the ground at the same time.
A pilot releases a package from a plane flying horizontally at a constant speed. When the
package reaches the ground below, what is the horizontal location of the plane with respect
to the package? Assume air resistance is negligible.
The plane will be located directly above the package.
A swimmer is determined to cross a river that flows due south with a strong current.
Initially, the swimmer is on the west bank desiring to reach a camp directly across the river
on the opposite bank. In which direction should the swimmer head?
The swimmer should swim northeast.
