1|Page
Power Engineering 2A1 Certification
Exam Questions with verified solutions
and Rationales
1. What is the definition of acceleration in linear motion?
A. Change in displacement divided by time
B. Change in velocity divided by time
C. Force multiplied by mass
D. Mass multiplied by velocity
Correct Answer: B
Rationale: Acceleration is the rate of change of velocity with respect to time. It is
a vector quantity measured in meters per second squared (m/s²) .
2. What is the formula for force according to Newton's Second Law?
A. F = m/v
B. F = m × a
C. F = v × t
D. F = m × g
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Correct Answer: B
Rationale: Newton's Second Law states that force equals mass multiplied by
acceleration (F = ma). This is a fundamental relationship in mechanics .
3. What is the unit of work in the SI system?
A. Watt
B. Newton
C. Joule
D. Pascal
Correct Answer: C
Rationale: Work is measured in joules (J), where one joule equals one newton-
meter. Work is defined as force multiplied by displacement .
4. What is the formula for kinetic energy?
A. mgh
B. ½mv²
C. Fd
D. m × v
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Correct Answer: B
Rationale: Kinetic energy is the energy of motion, calculated as ½ × mass ×
velocity². It is measured in joules .
5. What is the formula for potential energy at height h?
A. ½mv²
B. mgh
C. Fd
D. m × v
Correct Answer: B
Rationale: Potential energy due to position is calculated as mass × gravity × height
(mgh), where g = 9.81 m/s² .
6. What is the Law of Conservation of Energy?
A. Energy can be created but not destroyed
B. Energy can be destroyed but not created
C. Energy can neither be created nor destroyed
D. Energy is always lost as heat
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Correct Answer: C
Rationale: The Law of Conservation of Energy states that energy cannot be
created or destroyed, only transformed from one form to another .
7. What is momentum?
A. Mass × acceleration
B. Mass × velocity
C. Force × time
D. Mass × gravity
Correct Answer: B
Rationale: Momentum is the product of mass and velocity. It is a vector quantity
that describes the quantity of motion of a body .
8. What is the formula for torque?
A. T = F × r
B. T = m × a
C. T = F / r
D. T = m × v
Power Engineering 2A1 Certification
Exam Questions with verified solutions
and Rationales
1. What is the definition of acceleration in linear motion?
A. Change in displacement divided by time
B. Change in velocity divided by time
C. Force multiplied by mass
D. Mass multiplied by velocity
Correct Answer: B
Rationale: Acceleration is the rate of change of velocity with respect to time. It is
a vector quantity measured in meters per second squared (m/s²) .
2. What is the formula for force according to Newton's Second Law?
A. F = m/v
B. F = m × a
C. F = v × t
D. F = m × g
,2|Page
Correct Answer: B
Rationale: Newton's Second Law states that force equals mass multiplied by
acceleration (F = ma). This is a fundamental relationship in mechanics .
3. What is the unit of work in the SI system?
A. Watt
B. Newton
C. Joule
D. Pascal
Correct Answer: C
Rationale: Work is measured in joules (J), where one joule equals one newton-
meter. Work is defined as force multiplied by displacement .
4. What is the formula for kinetic energy?
A. mgh
B. ½mv²
C. Fd
D. m × v
,3|Page
Correct Answer: B
Rationale: Kinetic energy is the energy of motion, calculated as ½ × mass ×
velocity². It is measured in joules .
5. What is the formula for potential energy at height h?
A. ½mv²
B. mgh
C. Fd
D. m × v
Correct Answer: B
Rationale: Potential energy due to position is calculated as mass × gravity × height
(mgh), where g = 9.81 m/s² .
6. What is the Law of Conservation of Energy?
A. Energy can be created but not destroyed
B. Energy can be destroyed but not created
C. Energy can neither be created nor destroyed
D. Energy is always lost as heat
, 4|Page
Correct Answer: C
Rationale: The Law of Conservation of Energy states that energy cannot be
created or destroyed, only transformed from one form to another .
7. What is momentum?
A. Mass × acceleration
B. Mass × velocity
C. Force × time
D. Mass × gravity
Correct Answer: B
Rationale: Momentum is the product of mass and velocity. It is a vector quantity
that describes the quantity of motion of a body .
8. What is the formula for torque?
A. T = F × r
B. T = m × a
C. T = F / r
D. T = m × v
