Physics--> second test

Question 1

Heat Transfer

Answer 1

When heat is transferred from one thing to another.

Question 2

Conduction

Answer 2

When heat is transferred between two objects that come in contact with eachother.

Question 3

Convention

Answer 3

When heat is transferred by heat flowing through liquid and gases

Question 4

Radiation

Answer 4

Heat that travels through waves.

Question 5

Thermal Energy

Answer 5

Comes from anything giving off heat

Question 6

Heat

Answer 6

Thermal energy transferred from a hotter object to a colder object.
Measured in: JOULES (J)

Question 7

Temperature + what is it measured in?

Answer 7

The measure of the average amount of kinetic energy in the particles.
Measured in: CELSIUS (C°)

Question 8

Differences between heat and temperauture

Answer 8

Heat is the energy, temperature is the energy from the particles.

Question 9

Conductor

Answer 9

Any material that allows thermal energy to flow through

Question 10

Insulator

Answer 10

Does not allow thermal energy to flow through the material. Eg. Cloth, wooden, air, plastic

Question 11

Solar energy

Answer 11

The energy from the sun

Question 12

Solar Power

Answer 12

Electricity generated from sunlight

Question 13

Solar panels

Answer 13

Used to produce electricity

Question 14

Solar cells

Answer 14

Convert the light from the sun into electricity, found on solar panels

Question 15

Energy efficiency

Answer 15

How much of the output energy is useful energy

Question 16

Wasted energy

Answer 16

Energy that is not put into intended use

Question 17

Useful energy

Answer 17

Energy that is put into intended use