PHY 111 FINAL EXAM PRACTICE EVALUATION
2026 QUESTION AND WELL VERIFIED
ANSWERS ALREADY GRADED A+
Section 1: Kinematics in One Dimension
1. A car accelerates from rest at a constant rate of 2 m/s² for 5 seconds. What is its final velocity?
A) 2 m/s
B) 5 m/s
C) 10 m/s
D) 25 m/s
ANSWER✔✨-: C) 10 m/s
Rationale for A (2 m/s): This is the acceleration, not the final velocity. The student may have confused
the two values.
Rationale for B (5 m/s): This could be the result of dividing the acceleration by time, which is incorrect.
Rationale for C (10 m/s): Correct. Using the kinematic equation v = u + at, where u=0, a=2 m/s², and t=5
s, we get v = 0 + (2)(5) = 10 m/s.
Rationale for D (25 m/s): This is the incorrect use of the equation for distance (s = ½at²) or confusing
acceleration with velocity.
,2. A ball is thrown straight up with an initial velocity of 15 m/s. What is its velocity at the highest point of
its trajectory? (Ignore air resistance)
A) 0 m/s
B) 9.8 m/s
C) 15 m/s
D) -15 m/s
ANSWER✔✨-: A) 0 m/s
Rationale for A (0 m/s): Correct. At the highest point, the ball's vertical velocity is momentarily zero
before it changes direction and falls back down.
Rationale for B (9.8 m/s): This is the acceleration due to gravity, not the velocity at the top.
Rationale for C (15 m/s): This is the initial velocity, which is not the velocity at the top.
Rationale for D (-15 m/s): This would be the velocity when it returns to the launch point, not at the
highest point.
3. An object travels 50 meters in 10 seconds. What is its average speed?
A) 5 m/s
B) 10 m/s
C) 50 m/s
D) 0.2 m/s
ANSWER✔✨-: A) 5 m/s
Rationale for A (5 m/s): Correct. Average speed = Total distance / Total time = 50 m / 10 s = 5 m/s.
Rationale for B (10 m/s): This is the time divided by a distance factor or an incorrect calculation.
,Rationale for C (50 m/s): This is the distance, not the speed.
Rationale for D (0.2 m/s): This is the reciprocal of the correct ANSWER✔✨-, likely an error in division.
4. A car slows down from 20 m/s to 10 m/s over a distance of 50 meters. What is its acceleration?
A) -3 m/s²
B) -2 m/s²
C) 3 m/s²
D) 2 m/s²
ANSWER✔✨-: A) -3 m/s²
Rationale for A (-3 m/s²): Correct. Using v² = u² + 2as, where v=10 m/s, u=20 m/s, and s=50 m: 100 = 400
+ 2*a*50 => -300 = 100a => a = -3 m/s². The negative sign shows deceleration.
Rationale for B (-2 m/s²): This might be from using the wrong kinematic equation or a calculation error.
Rationale for C (3 m/s²): This is the magnitude of the acceleration but with the incorrect positive sign.
Rationale for D (2 m/s²): This is an incorrect calculation of acceleration.
5. A stone is dropped from a cliff. After 3 seconds, how far has it fallen? (Take g = 10 m/s²)
A) 15 m
B) 30 m
C) 45 m
D) 90 m
ANSWER✔✨-: C) 45 m
, Rationale for A (15 m): This might be the result of using s = ½gt or misplacing the time factor.
Rationale for B (30 m): This is the result of a miscalculation, perhaps using s = gt.
Rationale for C (45 m): Correct. Using s = ut + ½at², where u=0, a=10 m/s², and t=3 s: s = 0 + ½ * 10 * 9 =
45 m.
Rationale for D (90 m): This is from using s = gt², forgetting the ½ factor.
6. A car travels at a constant speed of 30 m/s for 15 seconds. What distance does it cover?
A) 200 m
B) 450 m
C) 2 m
D) 0.5 m
ANSWER✔✨-: B) 450 m
Rationale for A (200 m): This is an incorrect calculation.
Rationale for B (450 m): Correct. Distance = Speed × Time = 30 m/s × 15 s = 450 m.
Rationale for C (2 m): This is from dividing time by speed (15/30), which is not the formula for distance.
Rationale for D (0.5 m): This is the inverse of speed, not the distance.
7. An object's velocity changes from 5 m/s to 15 m/s in 2 seconds. What is its average acceleration?
A) 2.5 m/s²
B) 5 m/s²
2026 QUESTION AND WELL VERIFIED
ANSWERS ALREADY GRADED A+
Section 1: Kinematics in One Dimension
1. A car accelerates from rest at a constant rate of 2 m/s² for 5 seconds. What is its final velocity?
A) 2 m/s
B) 5 m/s
C) 10 m/s
D) 25 m/s
ANSWER✔✨-: C) 10 m/s
Rationale for A (2 m/s): This is the acceleration, not the final velocity. The student may have confused
the two values.
Rationale for B (5 m/s): This could be the result of dividing the acceleration by time, which is incorrect.
Rationale for C (10 m/s): Correct. Using the kinematic equation v = u + at, where u=0, a=2 m/s², and t=5
s, we get v = 0 + (2)(5) = 10 m/s.
Rationale for D (25 m/s): This is the incorrect use of the equation for distance (s = ½at²) or confusing
acceleration with velocity.
,2. A ball is thrown straight up with an initial velocity of 15 m/s. What is its velocity at the highest point of
its trajectory? (Ignore air resistance)
A) 0 m/s
B) 9.8 m/s
C) 15 m/s
D) -15 m/s
ANSWER✔✨-: A) 0 m/s
Rationale for A (0 m/s): Correct. At the highest point, the ball's vertical velocity is momentarily zero
before it changes direction and falls back down.
Rationale for B (9.8 m/s): This is the acceleration due to gravity, not the velocity at the top.
Rationale for C (15 m/s): This is the initial velocity, which is not the velocity at the top.
Rationale for D (-15 m/s): This would be the velocity when it returns to the launch point, not at the
highest point.
3. An object travels 50 meters in 10 seconds. What is its average speed?
A) 5 m/s
B) 10 m/s
C) 50 m/s
D) 0.2 m/s
ANSWER✔✨-: A) 5 m/s
Rationale for A (5 m/s): Correct. Average speed = Total distance / Total time = 50 m / 10 s = 5 m/s.
Rationale for B (10 m/s): This is the time divided by a distance factor or an incorrect calculation.
,Rationale for C (50 m/s): This is the distance, not the speed.
Rationale for D (0.2 m/s): This is the reciprocal of the correct ANSWER✔✨-, likely an error in division.
4. A car slows down from 20 m/s to 10 m/s over a distance of 50 meters. What is its acceleration?
A) -3 m/s²
B) -2 m/s²
C) 3 m/s²
D) 2 m/s²
ANSWER✔✨-: A) -3 m/s²
Rationale for A (-3 m/s²): Correct. Using v² = u² + 2as, where v=10 m/s, u=20 m/s, and s=50 m: 100 = 400
+ 2*a*50 => -300 = 100a => a = -3 m/s². The negative sign shows deceleration.
Rationale for B (-2 m/s²): This might be from using the wrong kinematic equation or a calculation error.
Rationale for C (3 m/s²): This is the magnitude of the acceleration but with the incorrect positive sign.
Rationale for D (2 m/s²): This is an incorrect calculation of acceleration.
5. A stone is dropped from a cliff. After 3 seconds, how far has it fallen? (Take g = 10 m/s²)
A) 15 m
B) 30 m
C) 45 m
D) 90 m
ANSWER✔✨-: C) 45 m
, Rationale for A (15 m): This might be the result of using s = ½gt or misplacing the time factor.
Rationale for B (30 m): This is the result of a miscalculation, perhaps using s = gt.
Rationale for C (45 m): Correct. Using s = ut + ½at², where u=0, a=10 m/s², and t=3 s: s = 0 + ½ * 10 * 9 =
45 m.
Rationale for D (90 m): This is from using s = gt², forgetting the ½ factor.
6. A car travels at a constant speed of 30 m/s for 15 seconds. What distance does it cover?
A) 200 m
B) 450 m
C) 2 m
D) 0.5 m
ANSWER✔✨-: B) 450 m
Rationale for A (200 m): This is an incorrect calculation.
Rationale for B (450 m): Correct. Distance = Speed × Time = 30 m/s × 15 s = 450 m.
Rationale for C (2 m): This is from dividing time by speed (15/30), which is not the formula for distance.
Rationale for D (0.5 m): This is the inverse of speed, not the distance.
7. An object's velocity changes from 5 m/s to 15 m/s in 2 seconds. What is its average acceleration?
A) 2.5 m/s²
B) 5 m/s²
