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Heat, Work, and Efficiency

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

A branch of physics that deals with the physical laws that relate heat and mechanical work.

a)

Thermodynamics

b)

Classical Physics

c)

Kinematics

d)

Dynamics

2.

Energy caused by temperature difference

a)

Temperature

b)

Heat

c)

Work

d)

Efficiency

3.

The energy transferred when an object is moved against force.

a)

Thermodynamics

b)

Heat

c)

Work

d)

Force

4.

A comparison of the energy output to the energy input in a given system.

a)

Machine

b)

Effective

c)

Heat

d)

Efficiency

5.

This is the the limited, defined part of the universe

a)

System

b)

Surrounding

c)

Universe

d)

Boundary

6.

The observable, physical world

a)

System

b)

Surroundings

c)

Universe

d)

Boundary

7.

All parts of the universe not included in the defined system.

a)

System

b)

Boundary

c)

Surroundings

d)

Universe

8.

TRUE or FALSE: If two bodies are each in thermal equilibrium with a third body, they are also in equilibrium with each other.

a)

TRUE

b)

FALSE

9.

TRUE or FALSE: Energy is created and destroyed and is transformed into different forms.

a)

TRUE

b)

FALSE

10.

What is that temperature when molecules have no movement (no kinetic energy) and it is when entropy reaches or approaches a constant value?

(a)