Unit C

Question 1

How do you read a thermometer?

Answer 1

Look for the long lines, which indicate 1 °F (-17.22 °C) (or 1 °C) each and the smaller lines, which indicate 0.2 °F (-17.67 °C) (or 0.1 °C) each. And you read the nearest number to the end of the liquid, counting the small lines if you need to.

Question 2

What is the transfer of heat between objects in contact?

Answer 2

Conduction

Question 3

What is conduction?

Answer 3

Is the transfer of heat energy between substances are in contact with one another.

Question 4

Which way does the heat transfer?

Answer 4

High Thermal Energy to Low Thermal Energy

Question 5

What is convection current?

Answer 5

When these particles move in a circular motion, and when convection can result in heat loss.

Question 6

Energy moving by infrared rays is called?

Answer 6

Infrared waves

Question 7

Which materials absorb heat faster?

Answer 7

Stone, cast iron, and aluminum

Question 8

Energy of movement is called?

Answer 8

Kinetic energy

Question 9

Method of heat when liquid or gas particles move from one place to another?

Answer 9

Convection

Question 10

What are the four theories in the Particle Model of Matter?

Answer 10

The particle model suggests that all substances are composed of particles, these particles are attracted to each other, these particles are kinetic and move around, and these particles move more when temperatures increase.

Question 11

What is kinetic energy?

Answer 11

The energy of motion, observable as the movement of an object or subatomic particle.

Question 12

What is Celsius?

Answer 12

A scale for measuring temperature, in which water freezes at 0 degrees and boils at 100 degrees.

Question 13

What is thermal energy?

Answer 13

Total kinetic energy of all the particles, the substance contains

Question 14

What are conductors?

Answer 14

A material that allows the transfer of heat.

Question 15

Liquid changing to a solid is called?

Answer 15

Freezing

Question 16

Which state do particles move the fastest?

Answer 16

Gasses

Question 17

In which state do particles move the slowest?

Answer 17

Solid state

Question 18

Would a copper rod increase in length if it was heated?

Answer 18

Yes it would

Question 19

What is special about aluminum foil in the oven?

Answer 19

Reflects heat from both its dull and shiny sides equally.

Question 20

Which state(s) uses volume?

Answer 20

Solid and liquid

Question 21

What is the R-value?

Answer 21

The measures used most commonly in the building and construction industry to determine a material’s ability to resist the transfer of heat.

Question 22

Heating systems in a large area from a single source are called?

Answer 22

Central heating system

Question 23

Thermostats use what metal inside them?

Answer 23

Mercury

Question 24

Renewable energy source (non-radioactive)?

Answer 24

Solar, wind energy

Question 25

What is insulation?

Answer 25

The act of separating a body from others by nonconductors, to prevent the transfer of electricity or of heat, and the state of a body so separated.

Question 26

What are non-renewable sources?

Answer 26

Oil, natural gas, coal, and nuclear energy.

Question 27

Environmental costs of burning fossil fuels?

Answer 27

Burning fossil fuels emits a number of air pollutants that are harmful to both the environment and public health.

Question 28

What is hydroelectric energy?

Answer 28

A renewable source of energy.

Question 29

What is hydroelectric energy, and what advantage of it?

Answer 29

The energy generated through hydropower relies on the water cycle, which is driven by the sun, making it renewable.

Question 30

What is energy conservation?

Answer 30

The decision and practice of using less energy.

Question 31

What kind of cars for better for the environment?

Answer 31

Electric cars, and hybrid.

Question 32

What is cogeneration?

Answer 32

a system that produces heat and electricity simultaneously in a single plant, powered by just one primary energy source.