Conduction, Convection And Radiation

Question 0

Thermal energy

Answer 0

Total energy of moving particles in a solid, gas or liquid

Question 1

Temperature

Answer 1

A measure of the average energy of all the particles in a solid, liquid or gas

Question 2

Chemical energy

Answer 2

Energy stored in matter , such as food, fuels and clothing

Question 3

Magnetic energy

Answer 3

Energy that causes types of metal to attract or push away from certain other metals

Question 4

Light energy

Answer 4

Form of energy our eyes can detect

Question 5

Gravitational energy

Answer 5

Stored energy object has when it’s above earths surface

Question 6

Nuclear energy

Answer 6

Stored energy in middle of particles of matter. Electricity from nuclear power plants

Question 7

Electrical energy

Answer 7

Energy moving through wire or electric device

Question 8

Elastic energy

Answer 8

Energy stored in objects that are stretched , bent or compressed

Question 9

Sound energy

Answer 9

Energy we can hear

Question 10

Mechanical energy

Answer 10

Energy of objects in motion

Question 11

Energy transformation

Answer 11

Changing from one form of energy to another

Question 12

Heat

Answer 12

Thermal energy transferred from one substance to another or within one substance

Question 13

Thermal expansion

Answer 13

The change in volume in response to change in temperature

Question 14

Heat transfer

Answer 14

Heat transfer occurs when energy is carried through or across one solid, liquid or gas to another

Question 15

Conduction

Answer 15

He transferred by the direct contact of molecules

Question 16

Convection

Answer 16

He transferred through a liquid or has by means movement of particles

Question 17

Radiation

Answer 17

Heat transferred through empty space by invisible in feared rays

Question 18

List 8 sources of heat

Answer 18

Friction, mechanical, chemical, electricity, light / solar energy, fossil fules, wood and renewable energy

Question 19

What happened when we judged temperature with our hands?

Answer 19

When you put one hand in the cold water it feels cold and the hand in the hot water feels hot. When put in the room temperature water, the hot hand felt cold and the cold hand felt hot.

Question 20

What was the conclusion of the judging temperature experiment?

Answer 20

Hands are not a good judge of temperature

Question 21

What is the Kelvin scale?

Answer 21

OK=273.15•c or absolute zero

Question 22

List three points about making a simple alcohol thermometer:

Answer 22

• with increasing temperature, the volume of liquid expands in the liquid moves up to tubes
• alcohol reacts quickly to changing temperatures
• alcohol has a lower freezing point allowing for the measurement of temperatures below 0•c

Question 23

What is this: A form of radiant energy, this is one of the most obvious natural sources of heat available to us. Electromagnet waves carry this heat source the greatest distance it needs to travel to reach earth

Answer 23

Solar energy

Question 24

When atoms are split, energy is released. While there are many advantages to use the source of heat energy, there are many unsolved, and perhaps, unsolvable disadvantages

Answer 24

Nuclear energy

Question 25

Coal-burning and hydroelectric generation stations are major producers of one of my main sources of heat: electricity.

Answer 25

Electrical energy

Question 26

This produces heat through the push or pull that can cause friction and results in faster- moving particles.

Answer 26

Mechanical force

Question 27

It takes advantage of the intense heat found within Earth. Some parts of the world uses renewable heat source more than other parts of the world.

Answer 27

Geothermal energy

Question 28

This form of energy is released when fuel such as what is burned. The same thing happens when we eat food, an important fuel for our bodies. But this case, the heat is produced through the process of digestion.

Answer 28

Chemic energy

Question 29

Give an example of electrical energy

Answer 29

Toaster

Question 30

Even example of solar energy

Answer 30

Solar panels

Question 31

Give an example of nuclear energy

Answer 31

Poles of pollution in factories

Question 32

Give an example of mechanical energy

Answer 32

Rubbing hands together to stay warm

Question 33

Give an example of chemical energy

Answer 33

Fire

Question 34

What does water freeze at?

Answer 34

0•c

Question 35

What does water boil at?

Answer 35

100•c

Question 36

In junkyard wars, what was the key to raising the mini?

Answer 36

Using buoyancy

Question 37

An object with positive buoyancy will what?

Answer 37

Float

Question 38

What did the two teams do to lift their mini?

Answer 38

One used crane to lift the car and the other Sunk barrels, attached the barrels to min , filled oil drums with air and the car (hopefully) floated

Question 39

Who won junkyard wars?

Answer 39

The orange team

Question 40

Molecules in a solid are locked in place and vibrate > + ____ = faster

Answer 40

Heat

Question 41

Solid turns into a liquid - _____ and ____ _______.

Answer 41

Vibrate and move around

Question 42

The more the heat the _____ the particles _______.

Answer 42

Faster, move

Question 43

Very hot= what?

Answer 43

Really fast and escape

Question 44

Boil=?

Answer 44

Evaporates and particles escape and are free to wander around wherever and how fast they want

Question 45

When you continue to heat gas, atoms will come apart which is called what?

Answer 45

Plasma

Question 46

In the pop can crush experiment , why do the cans crush?

Answer 46

Steam occupies the space in the can since the air has been pushed out. In cold water, the steam is very rapidly cooled . Gas molecules are condensed back to the liquid so there is less steam and a vacuum mid created. The vacuum sucks up the left over air causing the can to crush.

Question 47

In the ballon blow experiment, what happens?

Answer 47

The ballon is being filled with steam, which blows up the ballon with air. When the water cooled, the steam molecules slowed down and condensed back to liquid form.

Question 48

In the ballon in a bottle experiment, what happened?

Answer 48

The space between the particles condensed, causing the balloon to be sucked in

Question 49

What is an example of conduction?

Answer 49

Heat from hand transfers to the cone causing the ice cream to melt

Question 50

What is an example of radiation?

Answer 50

The sun warms the earth

Question 51

List three substances that conduct heat:

Answer 51

- Copper - metal - aluminum

Question 52

What is the opposite of conduction?

Answer 52

Insulate

Question 53

List four objects used to stop conduction:

Answer 53

- rubber - glass - wood - a coat

Question 54

Name what type of heat this is: car tires on a road

Answer 54

Conduction

Question 55

Name what type of heat this is: clothes dryer

Answer 55

Convection

Question 56

Name what type of heat this is: hair dryer

Answer 56

Convection

Question 57

Name what type of heat this is: hot air rising from truck

Answer 57

Radiation

Question 58

Name what type of heat this is: shuttle's surface in space

Answer 58

Radiation

Question 59

Name what type of heat this is: curling irons

Answer 59

Conduction

Question 60

Name what type of heat this is: hot water heater

Answer 60

Convection

Question 61

Name what type of heat this is: the air above fire

Answer 61

Convection or radiation

Question 62

Why were metal spoons better conductors than wood and plastic spoons in the conduction experiment?

Answer 62

Because metals are good conductors and plastic and woods are insulators ( they don't heat up)

Question 63

I'm the magic coin heat experiment, why did the lonnie push up off the bottle?

Answer 63

The pressure from the warm air pushed against the glass of cold air causing the lonnie to push up.

Question 64

In the conduction-balloon explode experiment, why did the balloon pop but didn't when it had water in it?

Answer 64

The water absorbed the heat instead of the air and conducted the heat away from the balloon, causing the balloon not to explode.