Free Practice Quiz Question List

2 Energy, Work, and Heat Online Quiz Questions

Use this free practice quiz with 20 questions to review 2 Energy, Work, and Heat, test your knowledge, and prepare for your next test or exam.

20 questions

Choose one

1 point

A stationary object is held above the ground. Which form of energy is associated with its elevated position?

A
Gravitational potential energy
B
Macroscopic kinetic energy
C
Heat stored in the object
D
Work stored in the object

Choose one

1 point

Which situation describes energy crossing a system boundary as heat?

A
Energy moves from a cooler object to a warmer object because a piston is moving.
B
Energy moves from a warmer object to a cooler object because of their temperature difference.
C
A rotating shaft turns a device.
D
An electric current drives a device.

True or false

1 point

True or false: A system's internal energy is distinct from the energy of its motion or position as a whole.

A
True
B
False

Fill in the blank

1 point

Energy flows spontaneously as heat from a region to a lower-temperature region.

Choose one

1 point

Which statement best describes the possible components of a system's total energy?

A
Only the system's internal energy
B
Only the system's overall kinetic and potential energies
C
Internal energy together with overall kinetic and potential energies
D
Heat and work stored within the system

Choose all

1 point

Select all the contributions that can be part of a system's internal energy.

A
Particles' microscopic translational kinetic energy
B
Particles' microscopic rotational kinetic energy
C
The system's overall kinetic energy as it moves
D
Particles' microscopic vibrational kinetic energy
E
Intermolecular potential energy
F
The system's gravitational potential energy as a whole

True or false

1 point

True or false: Heat and work describe ways energy is transferred, rather than forms of energy stored in a system.

A
True
B
False

Written response

1 point

What is the name of the energy associated with the microscopic motions and interactions of particles within a system?

Choose one

1 point

Which group lists energy forms associated with a system's chemical composition or electrical and magnetic conditions?

A
Translational, rotational, and vibrational kinetic energy
B
Gravitational, macroscopic kinetic, and intermolecular potential energy
C
Chemical, electrical, and magnetic energy
D
Heat, work, and internal energy

Fill in the blank

1 point

Using the convention that work done by the system is positive, work done on the system is represented by a value of $W$ .

Choose all

1 point

Select all the examples of work transfer across a system boundary.

A
A force moves a piston.
B
A rotating shaft turns a device.
C
An electric current does work.
D
Energy transfers solely because one region is at a higher temperature.

Written response

1 point

A closed system receives $35\,\text{J}$ of heat while $12\,\text{J}$ of work is done on it. Using the convention that work done by the system is positive, calculate $\Delta U$ in joules.

Open ended

1 point

Two different processes take the same closed system between the same initial and final states. Explain why the heat transferred and work done may differ between the processes even though the change in internal energy is the same.

Choose one

1 point

A book rests on a high shelf. Which energy form is associated with its position relative to the floor?

A
Potential energy
B
Macroscopic kinetic energy
C
Heat transfer
D
Work transfer

True or false

1 point

True or false: Heat and work are forms of energy stored in a system.

A
True
B
False

Choose one

1 point

Which way does energy flow spontaneously due to a temperature difference?

A
From a lower-temperature region to a higher-temperature region
B
From a higher-temperature region to a lower-temperature region
C
Only when both regions have the same temperature

Choose one

1 point

Which example describes work transfer across a system boundary?

A
Energy entering a system solely because its surroundings are warmer
B
Energy flowing from a warmer part of a system to a cooler part
C
Energy transferred when a rotating shaft turns a device

Choose one

1 point

A sealed container of gas is at rest and does not change position. Which statement about its internal energy is correct?

A
It has no internal energy because the container is not moving.
B
It can have internal energy due to the microscopic motions and interactions of its particles.
C
Its internal energy is only the energy associated with its position as a whole.

Written response

1 point

What term names energy transfer across a system boundary that occurs because of a temperature difference?

Written response

1 point

A closed system loses $120\ \text{J}$ of heat, and $30\ \text{J}$ of work is done on it. Using the convention that heat added to the system and work done by the system are positive, calculate $\Delta U=Q-W$ . Enter the signed value in joules.