Heat and It's Properties

Question 1

Matter is made up of small particles called ______.

Answer 1

Molecules

Question 2

When molecules are heated they move _______.

Answer 2

More rapidly / very fast

Question 3

When molecules are heated they move _______.

Answer 3

More rapidly / very fast

Question 4

Heat from the _______ warms the _______. In turn, the land warms the ________.

Answer 4

• Sun
• Land
• Atmosphere

Question 5

It is the method of heat transfer through particles from one part of a substance to the parts next to it.

Answer 5

Conduction

Question 6

Conduction comes from the latin word meaning ______.

Answer 6

“to lead”

Question 7

In this method, heat seems to be led along from place to place

Answer 7

Conduction

Question 8

(method) When one part of the material is heated, the particles in this part move fast and bump into the particles next to them.

Answer 8

Conduction

Question 9

(method) Is the transfer of heat by means of moving currents of liquids or gases.

Answer 9

Convection

Question 10

(method) Is the transfer of energy in the form of waves.

Answer 10

Radiation

Question 11

Three things may happen when radiant energy hits or strikes a material:

Answer 11

a. Radiant energy may pass right through the material.
b. Radiant energy may be reflected.
c. Radiant energy may be absorbed and changed into heat.

Question 12

Materials that are good absorbers of radiant energy.

Answer 12

dull dark surfaces

Question 12

Materials that are poor absorbers of radiant energy.

Answer 12

light shiny surfaces

Question 12

(true or false) Materials have different temperatures.

Answer 12

TRUE

Question 12

Materials that do not allow heat to flow easily.

Answer 12

nonconductors

Question 12

Nonconductors that are used to halt the flow of heat.

Answer 12

Insulators

Question 13

Materials that allow heat to flow easily.

Answer 13

conductors

Question 13

Heat can be transferred by:

Answer 13

• conduction
• convection
• radiation

Question 14

Heat transfer flows in what direction?

Answer 14

from a warmer object to the cooler one.

Question 15

(true or false) In radiation, no particles are needed to transfer.

Answer 15

TRUE

Question 16

(true or false) In radiation, particles are needed to transfer.

Answer 16

FALSE

Question 17

Energy that comes directly from the Sun.

Answer 17

Solar energy

Question 18

Materials designed to collect solar radiation from the Sun and convert energy to electricity.

Answer 18

Solar panels

Question 19

People who are trained to design or make solar panels.

Answer 19

solar energy contractors

Question 20

The buildup of carbon dioxide in the atmosphere that causes increase of atmospheric temperature.

Answer 20

global warming

Question 21

The measure of how hot or cold something is called ___________.
a. density
b. temperature
c. volume
d. solid

Answer 21

b. temperature

Question 22

The energy of the random motion of particles in matter is called ________.
a. Thermal energy
b. Kinetic energy
c. Solar energy
d. Conduction

Answer 22

b. Kinetic energy

Question 23

Energy from the Sun reaches Earth by __________.
a. friction
b. convection
c. reflection
d. radiation

Answer 23

d. radiation

Question 23

This is a material that does NOT allow heat to pass.
a. thermal energy
b. insulator
c. conductor
d. conduction

Answer 23

b. insulator

Question 24

Heat is transferred through the water by ______.

Answer 24

convection

Question 25

Heat is transferred from the flame to the pot by ______.

Answer 25

conduction