Energy Transformation VOCABULARY

Question 1

Energy

Answer 1

the ability to do work

Question 2

potential energy

Answer 2

stored energy and the energy of position
(Energy ready to go … like a lawn mower filled with gasoline (not moving but ready), a car on top of a hill (not moving but ready).

Question 3

chemical energy

Answer 3

the energy stored in the bonds of molecules and compounds … Energy that is given off when chemicals react

Question 3

Conservation of energy

Answer 3

Energy cannot be created or destroyed, it transforms to another form of energy

Question 4

Conduction

Answer 4

The transfer of energy by direct contact

Question 6

Convection

Answer 6

The transfer of energy through fluids

Question 7

Electrical energy

Answer 7

The energy of moving charges in electricity.

Question 8

Fluid

Answer 8

Liquids or gases

Question 9

Elastic potential energy

Answer 9

The energy stored from objects being stretched or compressed.

Question 10

Gravitational Energy (gravity)

Answer 10

Potential energy associated with gravity. This varies with height. Greater height = greater gravitational potential energy

Question 11

Kinetic Energy

Answer 11

The energy of motion. (Like skateboarding)

Energy at work. (Lawn mower cutting grass, a car racing down a hill)

Question 12

Mechanical Energy

Answer 12

Energy from the motion of matter. (Like in a spring or stretched rubber band.)

Question 13

Nuclear Energy

Answer 13

Energy from changes in the nucleus of an atom.

Question 14

radiant energy

Answer 14

Energy that is transmitted in the form of (electromagnetic) radiation (light). (Like solar energy or a flame) Form of energy; Example incandescent light bulb, oven filament; energy of light

Question 15

radiation

Answer 15

The transfer of energy through empty space. (Like the sun warming a greenhouse)

Question 16

sound energy

Answer 16

The energy of vibrating air molecules. (like sound going into your ear)

Question 17

thermal energy

Answer 17

The internal energy of a substance due to the movement or vibration of its atoms or molecules. (heat)

Question 18

transform

Answer 18

To change one form of energy to another.

Question 19

renewable

Answer 19

A natural resource that CAN NOT be replaced by natural processes within a lifetime.

Question 20

solar

Answer 20

Type of energy; energy from the sun that is converted into thermal or electrical energy

Question 21

system

Answer 21

Form of energy Example car interior in the summer; energy that all objects have; increases as the object’s temperature increases

Question 22

Watt

Answer 22

unit of power in the metric system.

Question 23

Wind

Answer 23

Type of energy; used by converting the energy of the wind into mechanical energy (wind turbines)

Question 24

You put your hand near the stove to see if it is warm. Heat is transferred to your hand through ______.

a. radiation
b. conduction
c. convection
d. insulation

Answer 24

Answer is “radiation,” because your hand does not actually touch the stove. If your hand touched the stove, it would then be “conduction.”

Question 25

This type of energy transfer is responsible for the formation of wind.

a. radiation
b. conduction
c. convection
d. insulation

Answer 25

C. Convection

Question 26

You are stirring your hot chocolate with a spoon. You “touch” the spoon and it is hot because heat is transferred by _______.

a. radiation
b. conduction
c. convection
d. insulation

Answer 26

B. Conduction

Question 27

You are playing at the beach all day. When you go home you realize you have a sunburn. What type of heat transfer does this demonstrate?

a. radiation
b. conduction
c. convection
d. insulation

Answer 27

A. radiation

Question 28

Which form of heat transfer occurs by direct contact?

a. radiation
b. conduction
c. convection
d. insulation

Answer 28

B. Conduction

Question 29

Which form of heat transfer occurs when you stay warm by sitting near a campfire?

a. radiation
b. conduction
c. convection
d. insulation

Answer 29

A. radiation

Question 30

You jump into the pool and notice that the water at the top is warmer than the water at the bottom of the pool. Which form of heat transfer explains this?

a. radiation
b. conduction
c. convection
d. insulation

Answer 30

C. convection

Question 31

You are sitting near a glass window and can feel the heat from the sun. Which type of heat transfer is this?

a. radiation
b. conduction
c. convection
d. insulation

Answer 31

A. radiation

Question 32

An energy ________________ occurs when energy changes from one type to another.

a. increase
b. conservation
c. transformation

Answer 32

C. transformation

Question 33

According to the law of conservation of energy, energy cannot

a. be created or destroyed.
b. transferred from one region to another.
c. transformed from one form to another.

Answer 33

A. be created or destroyed.

Question 34

When a ball is thrown into the air, its kinetic energy is lowest

a. at the moment it is released.
b. at its highest point.
c. in the middle of its fall.

Answer 34

B. at its highest point.

Question 35

When two objects are rubbing some of the mechanical energy is always transformed into

a. thermal energy.
b. electrical energy.
c. chemical energy

Answer 35

A. thermal energy

Question 36

When we digest food chemical energy is transformed into

a. light and chemical energy.
b. thermal and kinetic energy
c. radiant and electrical

Answer 36

B. thermal and kinetic energy

Question 37

transforms gravitational potential energy

a. a battery
b. light bulb
c. sound
d. thermal energy
e. a marble falling off a table

Answer 37

E. a marble falling off a table

Question 38

transforms chemical into electrical energy

a. a battery
b. light bulb
c. sound
d. thermal energy
e. a marble falling off a table

Answer 38

A. a battery

Question 39

The vibrations of air molecules

a. a battery
b. light bulb
c. sound
d. thermal energy
e. a marble falling off a table

Answer 39

C. sound

Question 40

transforms electrical energy into light energy

a. a battery
b. light bulb
c. sound
d. thermal energy
e. a marble falling off a table

Answer 40

B. light bulb

Question 41

the energy an iron transforms from electricity

a. a battery
b. light bulb
c. sound
d. thermal energy
e. a marble falling off a table

Answer 41

D. thermal energy