AP PHYSICS 1 –QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A |
INSTANT DOWNLOAD PDF.
*Core Domains*
*Kinematics*
*Dynamics*
*Circular Motion and Gravitation*
*Energy*
*Momentum*
*Simple Harmonic Motion*
*Torque and Rotational Motion*
*Introduction*
The purpose of this assessment is to evaluate comprehensive proficiency in foundational physics principles aligned
with rigorous academic standards. This exam tests conceptual understanding, analytical skills, and the ability to apply
physical laws to diverse theoretical and practical scenarios. The structure consists entirely of multiple-choice and
complex scenario-based questions designed to challenge critical thinking. Emphasis is placed on the application of
kinematics, dynamics, and conservation laws within real-world contexts, requiring examinees to demonstrate
advanced decision-making and quantitative reasoning. By mastering these materials, students confirm their readiness
for university-level coursework and professional scientific inquiry.
Section One: Questions 1–100
,1. A projectile is launched at an angle of 45 degrees. Ignoring air resistance, what is the vertical component of its
acceleration at the highest point of its trajectory?
A. 0 m/s²
B. 4.9 m/s²
🟢 C. 9.8 m/s² downward
D. 9.8 m/s² upward
🔴 RATIONALE: Regardless of the projectile's position, the only acceleration acting on it is gravity, which is
constant at 9.8 m/s² directed downward.
2. A constant force of 20 N is applied to a 5 kg object on a frictionless surface. What is the object's acceleration?
🟢 A. 4 m/s²
B. 0.25 m/s²
C. 100 m/s²
D. 15 m/s²
🔴 RATIONALE: Newton’s Second Law states F = ma. Rearranging for acceleration, a = F/m = 20 N / 5 kg = 4
m/s².
3. Which of the following is true regarding a satellite in circular orbit around Earth?
A. The satellite has no acceleration.
B. The satellite is in equilibrium.
🟢 C. The net force on the satellite is directed toward the center of the Earth.
D. The speed of the satellite depends on its mass.
🔴 RATIONALE: A satellite in circular orbit is undergoing centripetal acceleration, which requires a net force
(gravity) directed toward the center of the orbital path.
4. A 2 kg ball moving at 3 m/s strikes a wall and bounces back at 2 m/s. What is the change in momentum?
A. 2 kg·m/s
B. 6 kg·m/s
C. 4 kg·m/s
🟢 D. 10 kg·m/s
, 🔴 RATIONALE: Change in momentum is Δp = m(vf - vi). With velocity changing direction, Δp = 2 kg * (2 m/s -
(-3 m/s)) = 2 * 5 = 10 kg·m/s.
5. Work done by a force is zero if:
A. The force is perpendicular to the displacement.
B. The displacement is zero.
C. The force is zero.
🟢 D. All of the above.
🔴 RATIONALE: Work is defined as W = Fd cos(θ). If any term is zero, or if θ is 90 degrees (making cos(θ) zero),
the work done is zero.
6. A mass on a spring undergoes simple harmonic motion. At the equilibrium position:
A. Velocity is zero.
🟢 B. Potential energy is zero.
C. Kinetic energy is minimum.
D. Acceleration is maximum.
🔴 RATIONALE: At the equilibrium position, the displacement is zero, meaning spring potential energy (1/2 kx²)
is zero, and kinetic energy is at its maximum.
7. Which principle explains why a spinning ice skater speeds up when pulling in their arms?
🟢 A. Conservation of angular momentum.
B. Conservation of energy.
C. Newton's Third Law.
D. Rotational inertia.
🔴 RATIONALE: Since external torque is negligible, the product of rotational inertia and angular velocity must
remain constant; decreasing inertia requires increasing velocity.
8. Two identical blocks are released from the same height on different slopes. Block A is on a 30-degree incline,
Block B on a 60-degree incline. Which reaches the bottom with higher speed (ignore friction)?
A. Block A
B. Block B
🟢 C. Both have the same speed.
INSTANT DOWNLOAD PDF.
*Core Domains*
*Kinematics*
*Dynamics*
*Circular Motion and Gravitation*
*Energy*
*Momentum*
*Simple Harmonic Motion*
*Torque and Rotational Motion*
*Introduction*
The purpose of this assessment is to evaluate comprehensive proficiency in foundational physics principles aligned
with rigorous academic standards. This exam tests conceptual understanding, analytical skills, and the ability to apply
physical laws to diverse theoretical and practical scenarios. The structure consists entirely of multiple-choice and
complex scenario-based questions designed to challenge critical thinking. Emphasis is placed on the application of
kinematics, dynamics, and conservation laws within real-world contexts, requiring examinees to demonstrate
advanced decision-making and quantitative reasoning. By mastering these materials, students confirm their readiness
for university-level coursework and professional scientific inquiry.
Section One: Questions 1–100
,1. A projectile is launched at an angle of 45 degrees. Ignoring air resistance, what is the vertical component of its
acceleration at the highest point of its trajectory?
A. 0 m/s²
B. 4.9 m/s²
🟢 C. 9.8 m/s² downward
D. 9.8 m/s² upward
🔴 RATIONALE: Regardless of the projectile's position, the only acceleration acting on it is gravity, which is
constant at 9.8 m/s² directed downward.
2. A constant force of 20 N is applied to a 5 kg object on a frictionless surface. What is the object's acceleration?
🟢 A. 4 m/s²
B. 0.25 m/s²
C. 100 m/s²
D. 15 m/s²
🔴 RATIONALE: Newton’s Second Law states F = ma. Rearranging for acceleration, a = F/m = 20 N / 5 kg = 4
m/s².
3. Which of the following is true regarding a satellite in circular orbit around Earth?
A. The satellite has no acceleration.
B. The satellite is in equilibrium.
🟢 C. The net force on the satellite is directed toward the center of the Earth.
D. The speed of the satellite depends on its mass.
🔴 RATIONALE: A satellite in circular orbit is undergoing centripetal acceleration, which requires a net force
(gravity) directed toward the center of the orbital path.
4. A 2 kg ball moving at 3 m/s strikes a wall and bounces back at 2 m/s. What is the change in momentum?
A. 2 kg·m/s
B. 6 kg·m/s
C. 4 kg·m/s
🟢 D. 10 kg·m/s
, 🔴 RATIONALE: Change in momentum is Δp = m(vf - vi). With velocity changing direction, Δp = 2 kg * (2 m/s -
(-3 m/s)) = 2 * 5 = 10 kg·m/s.
5. Work done by a force is zero if:
A. The force is perpendicular to the displacement.
B. The displacement is zero.
C. The force is zero.
🟢 D. All of the above.
🔴 RATIONALE: Work is defined as W = Fd cos(θ). If any term is zero, or if θ is 90 degrees (making cos(θ) zero),
the work done is zero.
6. A mass on a spring undergoes simple harmonic motion. At the equilibrium position:
A. Velocity is zero.
🟢 B. Potential energy is zero.
C. Kinetic energy is minimum.
D. Acceleration is maximum.
🔴 RATIONALE: At the equilibrium position, the displacement is zero, meaning spring potential energy (1/2 kx²)
is zero, and kinetic energy is at its maximum.
7. Which principle explains why a spinning ice skater speeds up when pulling in their arms?
🟢 A. Conservation of angular momentum.
B. Conservation of energy.
C. Newton's Third Law.
D. Rotational inertia.
🔴 RATIONALE: Since external torque is negligible, the product of rotational inertia and angular velocity must
remain constant; decreasing inertia requires increasing velocity.
8. Two identical blocks are released from the same height on different slopes. Block A is on a 30-degree incline,
Block B on a 60-degree incline. Which reaches the bottom with higher speed (ignore friction)?
A. Block A
B. Block B
🟢 C. Both have the same speed.
