Unit Four

Question 1

Definition: Thermal Energy

Answer 1

(Heat) total energy of all of the particles in a material or object

Question 2

Definition: Thermometer

Answer 2

Mechanical or electrical devices for measuring temperature

Question 3

Definition: Scale

Answer 3

A series of measured sections that are marked and numbered and used for measurement, basically a ruler.

Question 4

Definition: Celcius Scale

Answer 4

Not very common measurement, measurement is degrees

Question 5

What is the freezing point on the Celcius scale

Answer 5

0

Question 6

What is the boiling point on the Celcius scale

Answer 6

100degrees

Question 7

Definition: Kelvin Scale

Answer 7

Water freezes at 273

Water boils at 373

Question 8

Definition: Sensor

Answer 8

A material which is affected by changes in some features of the environment, Such as temperature

Question 9

Definition: Signal

Answer 9

Information about temperature

Question 10

Definition: Responder

Answer 10

A pointer, light, or pther mechanism that uses the signal in some way

Question 11

Definition: Thermocouple

Answer 11

Dependant on temperature, two twisted wires that expand and contract with heat

Question 12

Definition: Bimetallic strips

Answer 12

Two metals joined together, curls and uncurls

Question 13

Definition: Recording Thermometer

Answer 13

A bimetallic strip connected to a paper which records the fluctations

Question 14

Definition: Infrared Thermogram

Answer 14

Records radiation,shows different colours for different heat signatures

Question 15

Who is Galileo

Answer 15

He invented the early thermometers

Question 16

Definition: Energy

Answer 16

The measure of somethings ability to do work

Question 17

Change happens when there is a—–in—–.

Answer 17

Difference

Energy

Question 18

Energy is always transferred from—-energy source to a—-energy source.

Answer 18

High

Low

Question 19

Three steps of calibrating a thermomterer

Answer 19

Step one
Liquid level is marked as 0for ice
Step two
Boiling level is 100
Step three 
Scale is divided into 100

Question 20

To calibrate a thermometer accurately where should you be?

Answer 20

Sea level

Question 21

Definition:Contract/Condense

Answer 21

To decrease in Volume

Question 22

Definition: Expand

Answer 22

Increase in volume

Question 23

Heat causes—–

Cool causes—–

Answer 23

Expansion

Contraction

Question 24

Definition: Heat capacity

Answer 24

The amount of thermal energy that warms or cools an object by one degree

Question 25

Definition: Specific heat capacity

Answer 25

The Amount of heat that heats one gram by one degree

Question 26

Definition:Change of state(8)

Answer 26

``` Sublimation Solids Gases Vaporization Melting Freezing Condensation Liquid ```

Question 27

Definition: Evaporative cooling

Answer 27

``` Faster particles(liquid) evaporate Slower ones left behind creating kinetic energy(cooling it) ```

Question 28

Definition:Phase changing

Answer 28

During change temp does not change

Question 29

Ways to transfer energy are...(3)

Answer 29

Radiation Convection Conduction

Question 30

Definition:Energy Source

Answer 30

An object or material that can transfer energy to other objects or materials

Question 31

Definition:Radiation

Answer 31

Transferring energy without any movement

Question 32

Definition: Radiant energy

Answer 32

Energy transferred by radiation

Question 33

Radiant energy does...(3)

Answer 33

Like waves Can be absorbed and reflected They travel through empty space at a speed of 300000km

Question 34

Definition: Thermal consuction

Answer 34

Transferring energy through collisions

Question 35

Definition: Heat insulators

Answer 35

Very poor conductors

Question 36

Definition: Convection

Answer 36

A warm fluid that carries thermal energy from place to place

Question 37

Definition: Potential energy

Answer 37

It has the potential to do something

Question 38

Definition: Kinetic energy

Answer 38

What is happening in the present

Question 39

Definition: Chemical energy

Answer 39

Kind in our body, also in batteries

Question 40

Definition:Energy Converters

Answer 40

Changes energy from one form to another

Question 41

Definition: Mechanical Forces

Answer 41

A source of thermal energy caused by friction

Question 42

Definition:Geothermal energy

Answer 42

Energy we harness from the earths interior

Question 43

Definition: Converters

Answer 43

Generate electrical energy

Question 44

Definition: Passive energy

Answer 44

Using materials and in the structure to absorb, store and release solar energy

Question 45

Definition: Active solar

Answer 45

Convert light energy absorbed by solar collectors into electrical

Question 46

Definition: Wind energy

Answer 46

Windmills

Question 47

Definition: Fossil Fuels

Answer 47

The mushy part of fossils made into chemicals(gas)

Question 48

Definition: Global Warming

Answer 48

The heat from fossil fuels being trapped in the earths atmosphere

Question 49

Definition: Thermal Pollution

Answer 49

Accidentally warming up the environment

Question 50

Definition: Cogeneration

Answer 50

Using waste heat to heat heeded areas

Question 51

Ways to conserve(save) energy(5)

Answer 51

- Carpool - Install programable thermostat - Reduce energy use - Reduce showers - Insulate homes and water lines - Etc.

Question 52

What happened in the precambrian era?

Answer 52

Rodinia

Question 53

What happened in the Paleozoic era

Answer 53

First sign of life, pange

Question 54

What happened in the Cenozoic era?

Answer 54

People

Question 55

What happened in the mesozoic era?

Answer 55

Dinosaurs, plants, bacteria, birds, mammals