UNE PHYS 1010 MIDTERM REVIEW – EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALE | 2027
Q&A | INSTANT DOWNLOAD PDF
1. A student records a measurement of 2.50 m for the length of a laboratory table.
How many significant figures are contained in this measurement?
A. Two
B. Three
C. Four
D. Five
Rationale: The number 2.50 contains three significant figures because the trailing zero after the
decimal point is significant.
2. Which SI unit is used to measure force?
A. Joule
B. Watt
C. Pascal
D. Newton
Rationale: Force is measured in newtons (N), which are equivalent to kg·m/s².
3. A quantity has both magnitude and direction. How is this type of quantity
classified?
A. Vector
B. Scalar
C. Constant
D. Derived scalar
Rationale: A vector has both magnitude and direction, whereas a scalar has magnitude only.
4. A runner travels 400 m east and then 100 m west. What is the runner's
displacement?
,A. 500 m east
B. 300 m west
C. 300 m east
D. 100 m east
Rationale: Taking east as positive, the net displacement is 400 m − 100 m = 300 m east.
5. A car travels 150 km in 3 hours. What is its average speed?
A. 30 km/h
B. 50 km/h
C. 75 km/h
D. 150 km/h
Rationale: Average speed equals total distance divided by total time. Thus, 150 km ÷ 3 h = 50
km/h.
6. Which statement correctly distinguishes speed from velocity?
A. Speed always has a negative value.
B. Velocity has magnitude only.
C. Speed requires direction.
D. Velocity includes both magnitude and direction.
Rationale: Speed is a scalar quantity, while velocity is a vector quantity that includes direction.
7. A position-time graph for an object is a straight line with a constant positive slope.
What does this indicate?
A. The object is accelerating positively.
B. The object is stationary.
C. The object has constant positive velocity.
D. The object's velocity is continuously decreasing.
, Rationale: The slope of a position-time graph represents velocity. A constant positive slope
therefore indicates constant positive velocity.
8. On a velocity-time graph, what physical quantity is represented by the slope?
A. Displacement
B. Acceleration
C. Momentum
D. Distance
Rationale: Acceleration is the rate of change of velocity, so it corresponds to the slope of a
velocity-time graph.
9. An object starts from rest and accelerates uniformly at 3 m/s² for 4 seconds.
What is its final velocity?
A. 0.75 m/s
B. 3 m/s
C. 12 m/s
D. 24 m/s
Rationale: Using v = v₀ + at, the final velocity is 0 + (3)(4) = 12 m/s.
10. A cyclist moving at 8 m/s increases velocity to 20 m/s in 6 seconds. What is the
average acceleration?
A. 1 m/s²
B. 2 m/s²
C. 3 m/s²
D. 4 m/s²
Rationale: Average acceleration is Δv/Δt = (20 − 8)/6 = 2 m/s².
11. An object moves with constant velocity along a straight path. Which statement
must be true?
A. A net force acts in the direction of motion.
CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALE | 2027
Q&A | INSTANT DOWNLOAD PDF
1. A student records a measurement of 2.50 m for the length of a laboratory table.
How many significant figures are contained in this measurement?
A. Two
B. Three
C. Four
D. Five
Rationale: The number 2.50 contains three significant figures because the trailing zero after the
decimal point is significant.
2. Which SI unit is used to measure force?
A. Joule
B. Watt
C. Pascal
D. Newton
Rationale: Force is measured in newtons (N), which are equivalent to kg·m/s².
3. A quantity has both magnitude and direction. How is this type of quantity
classified?
A. Vector
B. Scalar
C. Constant
D. Derived scalar
Rationale: A vector has both magnitude and direction, whereas a scalar has magnitude only.
4. A runner travels 400 m east and then 100 m west. What is the runner's
displacement?
,A. 500 m east
B. 300 m west
C. 300 m east
D. 100 m east
Rationale: Taking east as positive, the net displacement is 400 m − 100 m = 300 m east.
5. A car travels 150 km in 3 hours. What is its average speed?
A. 30 km/h
B. 50 km/h
C. 75 km/h
D. 150 km/h
Rationale: Average speed equals total distance divided by total time. Thus, 150 km ÷ 3 h = 50
km/h.
6. Which statement correctly distinguishes speed from velocity?
A. Speed always has a negative value.
B. Velocity has magnitude only.
C. Speed requires direction.
D. Velocity includes both magnitude and direction.
Rationale: Speed is a scalar quantity, while velocity is a vector quantity that includes direction.
7. A position-time graph for an object is a straight line with a constant positive slope.
What does this indicate?
A. The object is accelerating positively.
B. The object is stationary.
C. The object has constant positive velocity.
D. The object's velocity is continuously decreasing.
, Rationale: The slope of a position-time graph represents velocity. A constant positive slope
therefore indicates constant positive velocity.
8. On a velocity-time graph, what physical quantity is represented by the slope?
A. Displacement
B. Acceleration
C. Momentum
D. Distance
Rationale: Acceleration is the rate of change of velocity, so it corresponds to the slope of a
velocity-time graph.
9. An object starts from rest and accelerates uniformly at 3 m/s² for 4 seconds.
What is its final velocity?
A. 0.75 m/s
B. 3 m/s
C. 12 m/s
D. 24 m/s
Rationale: Using v = v₀ + at, the final velocity is 0 + (3)(4) = 12 m/s.
10. A cyclist moving at 8 m/s increases velocity to 20 m/s in 6 seconds. What is the
average acceleration?
A. 1 m/s²
B. 2 m/s²
C. 3 m/s²
D. 4 m/s²
Rationale: Average acceleration is Δv/Δt = (20 − 8)/6 = 2 m/s².
11. An object moves with constant velocity along a straight path. Which statement
must be true?
A. A net force acts in the direction of motion.
