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Energy Conservation and Heat Transfer Concepts

Total questions: 36

Worksheet time: 40mins

Name
Class
Date
1.
The Law of Conservation of Energy states:
a)
Energy can created or destroyed but not transformed 
b)
Energy cannot be created or destroyed, it can only transformed
c)
Energy can't be created, destroyed or transformed
2.
According to the Law of Conservation of energy, the amount of energy before and after a reaction must be the same. Which statement below is true?
a)
The total amount of energy is conserved
b)
The total amount of energy is less after a reaction
c)
The total amount of energy is more after a reaction
3.
What is the definition of CONDUCTION?
a)
When heat is transferred from objects like rays of light or electromagnetically.
b)
a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
c)
When heat transfers from objects that are touching.
d)
When heat transfers through the heater or AC in your house.
4.

Conduction requires

a)

Electricity

b)

the electromagnetic spectrum and particles

c)

air or water flow

d)

direct contact

5.

A group of friends gather around a fire to stay warm. This is an example of ________.

a)

conduction

b)

convection

c)

radiation

6.

Near the ceiling of a room the air is warmer. The warm air rises because of ________.

a)

conduction

b)

convection

c)

radiation

7.
Which best describes the process of convection?
a)
Convection is the primary way  heat travels  through rays.
b)
Convection is the primary way heat travels  through metals.
c)
Convection is the primary way heat travels  through appliances.
d)
Convection is the primary way heat travels  through liquids and gasses.
8.

The type of heat transfer that creates currents in water is called ________.

a)

conduction

b)

convection

c)

radiation

9.

What is energy?

a)

moving energy

b)

stored energy

c)

renewable energy

d)

The ability to do work.

10.

What type of energy is being transformed when you use a hairdryer?

a)

From thermal energy to electrical energy

b)

From electrical energy to kinetic energy

c)

From electrical energy to thermal energy

d)

From kinetic energy to thermal energy

11.

The energy associated with movement is called...

a)

Chemical energy

b)

Thermal energy

c)

Sound energy

d)

Kinetic energy

12.

In what state of matter is kinetic energy the highest?

a)

Solid

b)

Liquid

c)

Gas

13.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
14.

What is potential energy?

a)

moving energy

b)

stored energy

c)

renewable energy

d)

non renewable energy

15.

YOUR BODY GETS ENERGY FROM THE FOOD YOU EAT. WHAT IS THE FORM OF ENERGY IN FOOD?

a)
KINETIC
b)
ELASTIC
c)
GRAVITATIONAL
d)
CHEMICAL
16.

The energy in all bodies or objects that can give off heat is...

a)

Light energy

b)

Thermal energy

c)

Sun energy

d)

Graviational potential energy

17.

If thermal energy is increasing, what is happening to the kinetic energy.

a)

Kinetic energy would be decreasing

b)

Kinetic energy would stay the same

c)

Kinetic energy would be increasing

18.

Energy transferred between two objects with varying temperatures, always transferring from warmest to coldest until the two objects have equal temperatures.

a)

Heat

b)

Thermal Energy

c)

Energy Transfer

d)

Temperature

19.
A measure of the average kinetic energy of the individual particles in an object is called:
a)
thermal energy
b)
conduction
c)
convection
d)
temperature
20.
"Lava lamps" contain colored liquids. These liquids form globs that rise to the top due to
a)
conduction
b)
convection
c)
radiation
21.
When you touch something that feels cold, 
a)
heat from your hand moves into the cold substance.
b)
coldness moves from the cold substance into your hand.
c)
it melts.
d)
it freezes.
22.
Light travels in ___________________
a)
waves
b)
sound
c)
packs
d)
thunder
23.

Identify the energy transfer

a)

electrical to chemical to light

b)

kinetic to potential

c)

chemical to electrical to light

d)

light to sound

24.

Identify the energy transfer

a)

mechanical to sound

b)

chemical to electrical

c)

sound to mechanical

d)

thermal to sound

25.

Identify the energy transfer (photosynthesis)

a)

light to electrical

b)

solar to chemical

c)

chemical to thermal

d)

solar to chemical

26.

Identify the energy transfer

a)

chemical to kinetic

b)

solar to electrical

c)

thermal to light

d)

electrical to light

27.

Identify the energy transfer

a)

mechanical to light

b)

chemical to kinetic

c)

electrical to mechanical

d)

kinetic to thermal

28.

Identify the energy transfer

a)

chemical to light

b)

thermal to electrical

c)

chemical to heat

d)

electrical to thermal

29.

Identify the energy transfer

a)

chemical to electrical to sound

b)

sound to electrical to chemical

c)

electrical to sound to chemical

d)

potential to kinetic to light

30.

Identify the energy transfer

a)

kinetic to mechamical

b)

light to thermal

c)

potential to kinetic

d)

electrical to magnetism

31.

The faster an object moves, the ________ kinetic energy it has. 

a)

more

b)

less

32.

Which has a greater impact on KE?

a)

mass

b)

speed

33.

Car 1 and Car 2 have the same mass. Which of the following statements is true?

a)

Car 1 has the most kinetic energy because it is moving at a faster rate of speed.

b)

Car 2 has the least amount of kinetic energy because it is actually smaller than car one.

c)

Car 2 has the most kinetic energy because it is moving at a slower rate of speed.

d)

Car 1 has the least amount of kinetic energy because it is moving at a faster rate of speed.

34.

Where would this tossed baseball have the least amount of kinetic energy?

a)

point W

b)

point X

c)

point y

d)

point z

35.

Where would this tossed baseball have the least amount of kinetic energy?

a)

point W

b)

point X

c)

point y

d)

point z

36.

Where would this tossed baseball have the greatest amount of kinetic energy?

a)

point W

b)

point X

c)

point y

d)

point z

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