RIO SOLADO - PHY 111 MIDTERM 1
EXAM QUESTIONS WITH COMPLETE
SOLUTIONS 2025
A student moves 8.0 m to the west, 6.0 m to the north, and 10.0 m to the east. What is
the magnitude of the displacement? - ANSWER-6.3 m
Examine the position vs. time graph below. What is the velocity of the object at t = 5.0
s? - ANSWER--5 m/s
A student measures the mass of an object at 4.68 g and the volume of the object at 2.3
mL. The student calculates the density as 2.03478 g/mL. A second student disagrees
with the density. Which of the following statements would explain why the second
student disagrees? - ANSWER-The number of decimals in the answer does not show
proper precision.
Examine the position vs. time graph below. Which of the following correctly describes
the motion of the object? - ANSWER-Forwards at a constant speed and then backward
at a constant speed
A car moving at a constant 25 m/s travels for 3.0 seconds. What is the distance traveled
by the car? - ANSWER-75 m
A student measures the mass of an object at 4.68 g. Which of the following statements
is most accurate? - ANSWER-he first two digits are measured and the last digit is
estimated.
A student models the constant speed motion of an object with the following equation:
x = (4 m/s) t + (-15 m)
Which of the following descriptions of motion is consistent with this equation? -
ANSWER-The object starts at a negative position and travels forwards.
How much time will it take for an object traveling at a constant speed of 20 m/s to travel
15 m? - ANSWER-0.75 s
, A student models the constant speed motion of an object with the following equation:
x = (-2 m/s) t + (4 m)
Which of the following descriptions of motion is consistent with this equation? -
ANSWER-The object starts at a positive position and travels backwards.
Examine the velocity vs. time graph below. Which of the following correctly describes
the motion of the object? - ANSWER-Constant speed forwards and then constant speed
backward
Convert 35.0 mph to m/s. (1 mi = 1.6 km) - ANSWER-15.6 m/s
Which of the following is a vector measurement? - ANSWER-Displacement
Convert 4200 cm to miles. (1 mi = 1.6 km) - ANSWER-0.026 mi
A car travels forwards at a constant speed of 30 m/s for 5.0 seconds. How far will the
car move in this time? - ANSWER-150 m
Examine the velocity vs. time graph below. What is the total distance? - ANSWER-8 m
Examine the velocity vs. time graph below. What direction is the object moving at t = 4.0
s? - ANSWER-Backwards
A student wants to compare a set of measurements in order to analyze the precision of
an instrument. Which of the following methods would be most appropriate? - ANSWER-
Examine the percent difference between the largest and smallest measured values
How much time will it take for a car traveling at a velocity of -4.0 m/s to travel a distance
of 30 m? - ANSWER-7.5 m
A jogger starts at a position of 4.0 m and moves forwards at a constant rate ending at a
position of 12.0 m at a time 4.0 s later. What is the speed of the jogger? - ANSWER-2.0
m/s
A student moves 3.0 m south, 6.0 m east, and 1.0 m north. What is the angle of the
displacement? - ANSWER--18°
The grid below shows two vectors <strong>A</strong> and <strong>B</strong>. What
is the magnitude of the sum of the vectors <srong>A</strong>+<strong>B</strong>? -
ANSWER-5.7
A student launches a rocket with some initial velocity v at some angle θ. The rocket hits
a wall on its way back down to the ground. (See the diagram below.) Which of the
EXAM QUESTIONS WITH COMPLETE
SOLUTIONS 2025
A student moves 8.0 m to the west, 6.0 m to the north, and 10.0 m to the east. What is
the magnitude of the displacement? - ANSWER-6.3 m
Examine the position vs. time graph below. What is the velocity of the object at t = 5.0
s? - ANSWER--5 m/s
A student measures the mass of an object at 4.68 g and the volume of the object at 2.3
mL. The student calculates the density as 2.03478 g/mL. A second student disagrees
with the density. Which of the following statements would explain why the second
student disagrees? - ANSWER-The number of decimals in the answer does not show
proper precision.
Examine the position vs. time graph below. Which of the following correctly describes
the motion of the object? - ANSWER-Forwards at a constant speed and then backward
at a constant speed
A car moving at a constant 25 m/s travels for 3.0 seconds. What is the distance traveled
by the car? - ANSWER-75 m
A student measures the mass of an object at 4.68 g. Which of the following statements
is most accurate? - ANSWER-he first two digits are measured and the last digit is
estimated.
A student models the constant speed motion of an object with the following equation:
x = (4 m/s) t + (-15 m)
Which of the following descriptions of motion is consistent with this equation? -
ANSWER-The object starts at a negative position and travels forwards.
How much time will it take for an object traveling at a constant speed of 20 m/s to travel
15 m? - ANSWER-0.75 s
, A student models the constant speed motion of an object with the following equation:
x = (-2 m/s) t + (4 m)
Which of the following descriptions of motion is consistent with this equation? -
ANSWER-The object starts at a positive position and travels backwards.
Examine the velocity vs. time graph below. Which of the following correctly describes
the motion of the object? - ANSWER-Constant speed forwards and then constant speed
backward
Convert 35.0 mph to m/s. (1 mi = 1.6 km) - ANSWER-15.6 m/s
Which of the following is a vector measurement? - ANSWER-Displacement
Convert 4200 cm to miles. (1 mi = 1.6 km) - ANSWER-0.026 mi
A car travels forwards at a constant speed of 30 m/s for 5.0 seconds. How far will the
car move in this time? - ANSWER-150 m
Examine the velocity vs. time graph below. What is the total distance? - ANSWER-8 m
Examine the velocity vs. time graph below. What direction is the object moving at t = 4.0
s? - ANSWER-Backwards
A student wants to compare a set of measurements in order to analyze the precision of
an instrument. Which of the following methods would be most appropriate? - ANSWER-
Examine the percent difference between the largest and smallest measured values
How much time will it take for a car traveling at a velocity of -4.0 m/s to travel a distance
of 30 m? - ANSWER-7.5 m
A jogger starts at a position of 4.0 m and moves forwards at a constant rate ending at a
position of 12.0 m at a time 4.0 s later. What is the speed of the jogger? - ANSWER-2.0
m/s
A student moves 3.0 m south, 6.0 m east, and 1.0 m north. What is the angle of the
displacement? - ANSWER--18°
The grid below shows two vectors <strong>A</strong> and <strong>B</strong>. What
is the magnitude of the sum of the vectors <srong>A</strong>+<strong>B</strong>? -
ANSWER-5.7
A student launches a rocket with some initial velocity v at some angle θ. The rocket hits
a wall on its way back down to the ground. (See the diagram below.) Which of the
