s Flashcards

1
Q

boiling point

A

temperature at which a substance changes from liquid state to gas state

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

condensation

A

change of state from gas to liquid by removing heat energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

conduction

A

flow of energy between substances that are in contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

conductor

A

material that allows heat energy or electricity to flow easily

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

convection

A

flow of heat energy that involves moving liquid or gas particles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

freezing point

A

temperature at which a substance changes from liquid state to solid state

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

heat energy

A

energy that flows from matter at a higher temperature to matter at a lower temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

insulator

A

material that does not allow heat energy or electricity to flow easily

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

kinetic energy

A

energy of movement ; particles that make up matter have kinetic energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

melting point

A

temperature at which a substance changes from a solid to a liquid state

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

particle theory of matter

A

model that explains the behaviour of solids, liquids and gases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

radiation

A

flow of energy in the form of invisible waves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

temperature

A

a measurement of the average kinetic energy of the particles in a substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is the difference between temperature, heat and thermal energy

A

temputure is the average kinetic energy, thermal energy is the total kinetic energy and heat is the energy that flows from matter at a higher temp to a lower temp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

4 main points of the particle model of matter

A

all matter is made up of tiny particles
the particles are always moving
adding heat makes the particles move faster
the particles have space between them

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

thermal expansion

A

expansion of a substance caused by an increase in thermal energy

17
Q

thermal energy

A

the total kinetic energy of the particles

18
Q

solid

A

a state of matter, is a fixed volume, attached to each other in all directions

19
Q

gas

A

a state of matter, the particles are not connected to one another

20
Q

liquid

A

a state of matter, are loosely attached to each other

21
Q

describe the volume, shape, kinetic energy and space of a solid

A

space between - no space, held together
volume and shape - holds shape, fixed volume
movement (kinetic energy) - vibrates or shake back and forth in a fixed position

22
Q

describe the volume, shape, kinetic energy and space of a liquid

A

space - close together
volume and shape - fixed volume, shape of container
movement (kinetic energy) - can slip past each other, particles are weak

23
Q

describe the volume, shape, kinetic energy and space of a gas

A

space - not together at all
volume and shape- volume and shape of container
particle movement - all directions

24
Q

what is conduction, radiation and convection?

A

conduction- flow of energy between substances that are in contact
convection - flow of heat energy that involves moving liquid or gas particles
radiation - flow of energy in the form of invisible waves