Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

P1 Physics > Heating homes > Flashcards

Heating homes Flashcards

1
Q

what is a thermogram?

A

a picture that uses colour to indicate the hottest and coldest parts

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

what is temperature a measure of? and on what scale?

A

it is a measure of hotness on an arbitrary scale

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

what happens to the particles when the temperature of the body increases?

A

the average kinetic energy of the particles increase

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

what is heat a measure of? and what scale is it measured on?

A

heat is a measurement of internal energy. It is measured on an absolute scale

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

what is SHC?

A

The energy needed to raise the temperature of 1kg by 1 degree

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

what is SHC measured in?

A

joules per kilogram degree celsius (J/Kg degree celsius)

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

what is SLH?

A

the energy needed to melt or boil 1kg of the material

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

what is SLH measured in?

A

joule per kilogram

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

Explain why their is no change in temperature when a substance is heated?

A

because energy is needed to break the bonds that hold the molecules together

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

what is heat measured in?

A

amount of energy

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

what Is the unit of energy?

A

joule

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

what is temperature a measure of?

A

the average kinetic energy of the particles

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

what if heat a measure of?

A

the total internal energy of an object

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

what can the energy needed to change the temperature of a liquid be measured by?

A

using an electrical immersion heater connected to a joulemeter

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

what is latent heat?

A

the heat needed to change a state without a change in temperature

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

which is better a low U value or a higher U value and why?

A

lower because less heat is transferred

17
Q

what it temperature a measure of?

A

how hot something is

18
Q

what would cool down faster:
a room at 50 degrees above room temp
or a room at 5 degrees above room temp

A

a room at 3 degrees

19
Q

what might cold solid objects do?

A

melt

20
Q

what graph would be best to present how a temperature cools down to room temp?

A

curved from top right to bottom right

21
Q

what would happen if you put an ice cube on your hand?

A

your hand would get colder because energy flows from a warmer to a colder body

22
Q

what happens when an object is heated and its temperature rises?

A

energy is transferred

23
Q

why is there no change in temperature when a substance changes state?

A

because energy is needed to break the bonds that hold the molecules together

P1 Physics (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions