P |a |g |e | | |
1
RIO SALADO - PHY 111 MIDTERM 1 2025
BRAND NEW ACTUAL EXAM WITH
VERIFIED ANSWERS
A ball is attached to the center of the ceiling inside of a van moving at
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constant speed. If the ball is released, where will the ball land? - correct-
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answer-Directly below its starting position (middle of the van)
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A student fires a bullet horizontally from a gun. Which statement is most
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accurate? - correct-answer-The bullet will start to fall as soon as it leaves the gun.
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The grid below shows the path a student takes through a campus area. What is
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the approximate direction of the student's overall displacement? (Be careful—this
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is not a position vs. time graph.) - correct-answer-56°
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A student standing on the edge of a cliff throws a rock downward at a speed of 7.5
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m/s at an angle 40° below the horizontal. It takes the rock 2.4 seconds to hit the
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ground. How tall is the cliff? - correct-answer-39.8 m
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, P |a |g |e | | |
2
A student rolls two balls off of a table. Ball A has twice the mass of ball B. Both
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balls leave the table at the same time with the same starting velocity. Which ball
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will hit the ground first? (Air resistance is negligible.) - correct-answer-A will hit
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the ground at the same time as B.
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Vector A has components A = <-2, 5> m/s and vector B has components B = <6, -2>
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m/s. What is the magnitude of vector C if C = A + B? - correct-answer-5 m/s
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A student throws a rock horizontally off a 5.0 m tall building. The rock's initial
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speed is 6.0 m/s. How long will it take the rock to reach the ground? Air resistance
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is negligible. - correct-answer-1.0 s
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A student fires a bullet horizontally out of a gun. At the same time the bullet
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leaves the gun, the student drops a second bullet from the same height. Which
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bullet hits the ground first? - correct-answer-The two bullets will hit the ground at
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the same time.
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A student rolls two balls off of a table. Ball A has twice the mass of ball B. Both
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balls leave the table with the same starting velocity. Which ball will land further
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away from the table? (Air resistance is negligible.) - correct-answer-A and B will
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land the same distance from the table.
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, P |a |g |e | | |
3
Mars has a gravitational field strength of 3.7 N/kg near its surface. If air resistance
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is negligible, then an object dropped on Mars would have an acceleration that is
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- correct-answer-equal to 3.7 m/s2.
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How long will it take an object to travel a distance of 50 m if it starts from rest and
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accelerates at a rate of 12 m/s2? - correct-answer-2.9 s
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A car accelerates from rest at a rate of 20 m/s2. How far will the car have traveled
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by the time it reaches a speed of 30 m/s? - correct-answer-22.5 m
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A box moving on a horizontal surface with an initial velocity of 20 m/s slows to a
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stop over a time period of 5.0 seconds due solely to the effects of friction. What is
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the coefficient of kinetic friction between the box and the ground? - correct-
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answer-0.41
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Three students move identical tables across identical carpeted floors with the
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same applied force. The direction of the applied force on table A is horizontal. The
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direction of the applied force on table B is 45° below the horizontal. The
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direction of the applied force on table C is 45° above the horizontal (see below).
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Which table will experience the smallest friction force? - correct-answer-Table C
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will experience the smallest friction force.
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1
RIO SALADO - PHY 111 MIDTERM 1 2025
BRAND NEW ACTUAL EXAM WITH
VERIFIED ANSWERS
A ball is attached to the center of the ceiling inside of a van moving at
| | | | | | | | | | | | | | |
constant speed. If the ball is released, where will the ball land? - correct-
| | | | | | | | | | | | | |
answer-Directly below its starting position (middle of the van)
| | | | | | | |
A student fires a bullet horizontally from a gun. Which statement is most
| | | | | | | | | | | |
accurate? - correct-answer-The bullet will start to fall as soon as it leaves the gun.
| | | | | | | | | | | | | | |
The grid below shows the path a student takes through a campus area. What is
| | | | | | | | | | | | | |
the approximate direction of the student's overall displacement? (Be careful—this
| | | | | | | | | |
is not a position vs. time graph.) - correct-answer-56°
| | | | | | | | |
A student standing on the edge of a cliff throws a rock downward at a speed of 7.5
| | | | | | | | | | | | | | | | |
m/s at an angle 40° below the horizontal. It takes the rock 2.4 seconds to hit the
| | | | | | | | | | | | | | | | |
ground. How tall is the cliff? - correct-answer-39.8 m
| | | | | | | | |
, P |a |g |e | | |
2
A student rolls two balls off of a table. Ball A has twice the mass of ball B. Both
| | | | | | | | | | | | | | | | | |
balls leave the table at the same time with the same starting velocity. Which ball
| | | | | | | | | | | | | | |
will hit the ground first? (Air resistance is negligible.) - correct-answer-A will hit
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the ground at the same time as B.
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Vector A has components A = <-2, 5> m/s and vector B has components B = <6, -2>
| | | | | | | | | | | | | | | | |
m/s. What is the magnitude of vector C if C = A + B? - correct-answer-5 m/s
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A student throws a rock horizontally off a 5.0 m tall building. The rock's initial
| | | | | | | | | | | | | |
speed is 6.0 m/s. How long will it take the rock to reach the ground? Air resistance
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is negligible. - correct-answer-1.0 s
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A student fires a bullet horizontally out of a gun. At the same time the bullet
| | | | | | | | | | | | | | |
leaves the gun, the student drops a second bullet from the same height. Which
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bullet hits the ground first? - correct-answer-The two bullets will hit the ground at
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the same time.
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A student rolls two balls off of a table. Ball A has twice the mass of ball B. Both
| | | | | | | | | | | | | | | | | |
balls leave the table with the same starting velocity. Which ball will land further
| | | | | | | | | | | | | |
away from the table? (Air resistance is negligible.) - correct-answer-A and B will
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land the same distance from the table.
| | | | | | |
, P |a |g |e | | |
3
Mars has a gravitational field strength of 3.7 N/kg near its surface. If air resistance
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is negligible, then an object dropped on Mars would have an acceleration that is
| | | | | | | | | | | | | |
- correct-answer-equal to 3.7 m/s2.
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How long will it take an object to travel a distance of 50 m if it starts from rest and
| | | | | | | | | | | | | | | | | | |
accelerates at a rate of 12 m/s2? - correct-answer-2.9 s
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A car accelerates from rest at a rate of 20 m/s2. How far will the car have traveled
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by the time it reaches a speed of 30 m/s? - correct-answer-22.5 m
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A box moving on a horizontal surface with an initial velocity of 20 m/s slows to a
| | | | | | | | | | | | | | | |
stop over a time period of 5.0 seconds due solely to the effects of friction. What is
| | | | | | | | | | | | | | | | |
the coefficient of kinetic friction between the box and the ground? - correct-
| | | | | | | | | | | | |
answer-0.41
|
Three students move identical tables across identical carpeted floors with the
| | | | | | | | | |
same applied force. The direction of the applied force on table A is horizontal. The
| | | | | | | | | | | | | | |
direction of the applied force on table B is 45° below the horizontal. The
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direction of the applied force on table C is 45° above the horizontal (see below).
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Which table will experience the smallest friction force? - correct-answer-Table C
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will experience the smallest friction force.
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