HESI A2 Physics 2024/2025 100% Verified Answers
with Applied Principles and Step-by-Step Logic
Instructions
This document contains 80 unique multiple-choice questions designed for HESI A2 Physics
preparation, covering motion, energy, force, waves, electricity, and units. Each question in-
cludes four answer choices, with the correct answer marked, followed by a detailed explanation.
Select the best answer for each question.
Practice Questions
Question 1: A car travels 120 meters in 8 seconds. What is its average speed?
A. 12 m/s
B. 15 m/s (Correct)
C. 18 m/s
D. 20 m/s
Distance 120 m
Explanation: Average speed is distance divided by time: Speed = Time
= 8s
=
15 m/s.
Question 2: An object accelerates from rest at 4 m/sš for 5 seconds. What is its final velocity?
A. 15 m/s
B. 20 m/s (Correct)
C. 25 m/s
D. 30 m/s
Explanation: Use the equation v = u + at, where initial velocity u = 0, acceleration
a = 4 m/s2 , and time t = 5 s. Thus, v = 0 + (4)(5) = 20 m/s.
Question 3: A 10 kg mass is lifted 2 meters. What is the potential energy gained? (Use g = 9.8 m/s2 )
A. 196 J (Correct)
B. 98 J
C. 392 J
1
, D. 49 J
Explanation: Potential energy is given by P E = mgh. Substitute: P E = (10)(9.8)(2) =
196 J.
Question 4: A force of 50 N is applied to a 25 kg object. What is the acceleration?
A. 1 m/sš
B. 2 m/sš (Correct)
C. 3 m/sš
D. 4 m/sš
F 50
Explanation: Newtons second law: F = ma. Solve for acceleration: a = m
= 25
=
2 m/s2 .
Question 5: A sound wave has a frequency of 200 Hz and a wavelength of 1.7 m. What is its speed?
A. 300 m/s
B. 340 m/s (Correct)
C. 360 m/s
D. 400 m/s
Explanation: Wave speed is v = f λ. Calculate: v = (200)(1.7) = 340 m/s.
Question 6: A circuit has a 12 V battery and a 4 resistor. What is the current?
A. 2 A
B. 3 A (Correct)
C. 4 A
D. 6 A
V 12
Explanation: Ohms law: V = IR. Solve for current: I = R
= 4
= 3 A.
Question 7: Convert 60 km/h to m/s.
A. 15 m/s
B. 16.67 m/s (Correct)
C. 18 m/s
D. 20 m/s
Explanation: Convert: 60 km/h × 1000 m
3600 s
= 60×1000
3600
= 16.67 m/s.
Question 8: A ball is thrown upward with an initial velocity of 20 m/s. How long does it take to reach
its peak? (Use g = 9.8 m/s2 )
A. 1.5 s
B. 2.04 s (Correct)
C. 2.5 s
2
, D. 3 s
Explanation: At the peak, velocity is 0. Use v = u − gt: 0 = 20 − (9.8)t. Solve:
20
t = 9.8 ≈ 2.04 s.
Question 9: A 5 kg object has a kinetic energy of 100 J. What is its speed?
A. 4 m/s
B. 6.32 m/s (Correct)
C. 8 m/s
D. 10 m/s
Explanation: Kinetic energy: KE = 21 mv 2 . Solve for v: 100 = 12 (5)v 2 , v 2 = 200
= 40,
√ 5
v = 40 ≈ 6.32 m/s.
Question 10: A 20 N force acts on a 10 kg object for 4 seconds. What is the change in velocity?
A. 4 m/s
B. 8 m/s (Correct)
C. 12 m/s
D. 16 m/s
80
Explanation: Impulse: F ∆t = m∆v. Solve: (20)(4) = (10)∆v, ∆v = 10
= 8 m/s.
Question 11: A wave has a period of 0.02 seconds. What is its frequency?
A. 20 Hz
B. 40 Hz
C. 50 Hz (Correct)
D. 100 Hz
1 1
Explanation: Frequency is the inverse of period: f = T
= 0.02
= 50 Hz.
Question 12: Two resistors, 6 and 3 , are in series with a 9 V battery. What is the total current?
A. 1 A (Correct)
B. 1.5 A
C. 2 A
D. 3 A
V 9
Explanation: Total resistance: R = 6 + 3 = 9 Ω. Current: I = R
= 9
= 1 A.
Question 13: A 2 kg object falls 5 meters. What is its final velocity just before impact? (Use g =
9.8 m/s2 , ignore air resistance)
A. 7 m/s
B. 9.9 m/s (Correct)
C. 12 m/s
3
with Applied Principles and Step-by-Step Logic
Instructions
This document contains 80 unique multiple-choice questions designed for HESI A2 Physics
preparation, covering motion, energy, force, waves, electricity, and units. Each question in-
cludes four answer choices, with the correct answer marked, followed by a detailed explanation.
Select the best answer for each question.
Practice Questions
Question 1: A car travels 120 meters in 8 seconds. What is its average speed?
A. 12 m/s
B. 15 m/s (Correct)
C. 18 m/s
D. 20 m/s
Distance 120 m
Explanation: Average speed is distance divided by time: Speed = Time
= 8s
=
15 m/s.
Question 2: An object accelerates from rest at 4 m/sš for 5 seconds. What is its final velocity?
A. 15 m/s
B. 20 m/s (Correct)
C. 25 m/s
D. 30 m/s
Explanation: Use the equation v = u + at, where initial velocity u = 0, acceleration
a = 4 m/s2 , and time t = 5 s. Thus, v = 0 + (4)(5) = 20 m/s.
Question 3: A 10 kg mass is lifted 2 meters. What is the potential energy gained? (Use g = 9.8 m/s2 )
A. 196 J (Correct)
B. 98 J
C. 392 J
1
, D. 49 J
Explanation: Potential energy is given by P E = mgh. Substitute: P E = (10)(9.8)(2) =
196 J.
Question 4: A force of 50 N is applied to a 25 kg object. What is the acceleration?
A. 1 m/sš
B. 2 m/sš (Correct)
C. 3 m/sš
D. 4 m/sš
F 50
Explanation: Newtons second law: F = ma. Solve for acceleration: a = m
= 25
=
2 m/s2 .
Question 5: A sound wave has a frequency of 200 Hz and a wavelength of 1.7 m. What is its speed?
A. 300 m/s
B. 340 m/s (Correct)
C. 360 m/s
D. 400 m/s
Explanation: Wave speed is v = f λ. Calculate: v = (200)(1.7) = 340 m/s.
Question 6: A circuit has a 12 V battery and a 4 resistor. What is the current?
A. 2 A
B. 3 A (Correct)
C. 4 A
D. 6 A
V 12
Explanation: Ohms law: V = IR. Solve for current: I = R
= 4
= 3 A.
Question 7: Convert 60 km/h to m/s.
A. 15 m/s
B. 16.67 m/s (Correct)
C. 18 m/s
D. 20 m/s
Explanation: Convert: 60 km/h × 1000 m
3600 s
= 60×1000
3600
= 16.67 m/s.
Question 8: A ball is thrown upward with an initial velocity of 20 m/s. How long does it take to reach
its peak? (Use g = 9.8 m/s2 )
A. 1.5 s
B. 2.04 s (Correct)
C. 2.5 s
2
, D. 3 s
Explanation: At the peak, velocity is 0. Use v = u − gt: 0 = 20 − (9.8)t. Solve:
20
t = 9.8 ≈ 2.04 s.
Question 9: A 5 kg object has a kinetic energy of 100 J. What is its speed?
A. 4 m/s
B. 6.32 m/s (Correct)
C. 8 m/s
D. 10 m/s
Explanation: Kinetic energy: KE = 21 mv 2 . Solve for v: 100 = 12 (5)v 2 , v 2 = 200
= 40,
√ 5
v = 40 ≈ 6.32 m/s.
Question 10: A 20 N force acts on a 10 kg object for 4 seconds. What is the change in velocity?
A. 4 m/s
B. 8 m/s (Correct)
C. 12 m/s
D. 16 m/s
80
Explanation: Impulse: F ∆t = m∆v. Solve: (20)(4) = (10)∆v, ∆v = 10
= 8 m/s.
Question 11: A wave has a period of 0.02 seconds. What is its frequency?
A. 20 Hz
B. 40 Hz
C. 50 Hz (Correct)
D. 100 Hz
1 1
Explanation: Frequency is the inverse of period: f = T
= 0.02
= 50 Hz.
Question 12: Two resistors, 6 and 3 , are in series with a 9 V battery. What is the total current?
A. 1 A (Correct)
B. 1.5 A
C. 2 A
D. 3 A
V 9
Explanation: Total resistance: R = 6 + 3 = 9 Ω. Current: I = R
= 9
= 1 A.
Question 13: A 2 kg object falls 5 meters. What is its final velocity just before impact? (Use g =
9.8 m/s2 , ignore air resistance)
A. 7 m/s
B. 9.9 m/s (Correct)
C. 12 m/s
3
