Work, Energy, and Power in Physics Quiz

Test your understanding of mechanics with questions on work units, kinetic energy, thermodynamics laws, power, and more in this quiz.

#1

Which of the following is a unit of work?

Joule
Newton
Watt
Meter
#2

Which of the following statements is true about kinetic energy?

It depends on an object's position.
It depends on an object's speed.
It depends on an object's mass.
It remains constant for a moving object.
#3

Which of the following is a unit of power equivalent to one joule per second?

Volt
Watt
Ohm
Ampere
#4

Which type of energy is associated with the motion of an object?

Potential energy
Thermal energy
Kinetic energy
Chemical energy
#5

What is the unit of work and energy equivalent to one newton meter?

Joule
Watt
Pascal
Volt
#6

Which law of thermodynamics states that energy cannot be created or destroyed?

First Law
Second Law
Third Law
Zeroth Law
#7

What is the SI unit of power?

Joule
Watt
Newton
Coulomb
#8

Which of the following is a conservative force?

Friction
Gravity
Air resistance
Tension
#9

Which of the following equations represents the work-energy theorem?

W = Fd
W = mg
W = ΔKE
W = P/t
#10

Which of the following statements is true about the work done by a constant force?

Work done is always positive
Work done is always negative
Work done can be positive or negative depending on the direction of the force
Work done is always zero
#11

A force of 50 N is applied to an object to move it 10 meters. How much work is done?

500 J
5 J
50 J
10 J
#12

What is the potential energy of a 2 kg mass raised to a height of 5 meters? (g = 9.8 m/s²)

98 J
19.6 J
10 J
0.98 J
#13

What happens to the kinetic energy of a falling object as it approaches terminal velocity?

It increases
It decreases
It remains constant
It becomes zero
#14

What is the work done by a force acting perpendicular to the direction of motion?

Positive work
Negative work
Zero work
Variable work
#15

Which law of thermodynamics states that entropy of a system approaches a constant value as the temperature approaches absolute zero?

First Law
Second Law
Third Law
Zeroth Law

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