Brainscape's Knowledge GenomeTM

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


See full index

Physics > Matter > Flashcards

Matter Flashcards

You may prefer our related Brainscape-certified flashcards:
Physics 101 flashcards AP® Physics flashcards
1
Q

what is the formation of solid?

A
  • strong forces of attraction
  • regular arrangement
  • vibrate in fixed position
  • more dense
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is the formation of a liquid?

A
  • weaker forces of attraction
  • more kinetic stores
  • random direction at low speeds
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is the formation of a gas?

A
  • almost no forces of attraction
  • free to move
  • random directions at high speeds
  • less dense
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what is it called moving a solid to a gas?

A

sublimation

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

what is the equation for density?

A 
p= m/v
density= mass/ velocity
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what are the units of density?

A

g/cm3

kg/m3

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

what method/investigation would you use to investigate the densities of solids and liquids?

A
  1. measure mass of object (m1)
  2. fill bottle with liquid of known density
  3. place stopper and dry bottle
  4. measure mass again (m2)
  5. empty bottle and put object into density bottle
  6. repeate 2+3 and record mass (m3)
  7. calculate volume of displaced water
  8. work out density
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is the difference between chemical and physical changes?

A
  • physical is changes of state

- chemical is chemical reactions forming new substances

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

how will heating a system change the amount of energy stored in that system?

A
  • heating increases energy in thermal energy store

- material Gian energy when heated up

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

define the term specific heat capacity

A

change in energy in the thermal storer needed to rise the temperature of 1kg of that substance up by 1 degree

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

define the term latent heat

A

heat required to change a solid into a liquid by not changing the temperature

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

what is the equation for CHANGE IN thermal energy (J)?

A

Q= m X c X temperature change
change in thermal energy .=
mass(KG) X heat (J/KG) X temperature change

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

what is the equation for thermal energy? (Q)

A

Q= M X L

thermal energy = mass X specific latent heat (J/KG)

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

how can you investigate the properties of water by determining specific heat temperatures of melting ice?

A
  1. use mass balance to measure mass of insulting container
  2. fill with water and measure again
  3. set up joule meter and make sure it reads 0
  4. measure temperature of water then power on
  5. watch thermometer when increased by e.g. 10degrees stop and record energy on joule meter
  6. calculate heat captivity by Q= m X c X temperature change
  7. repeat 3x, average
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

when do gas particles create pressure?

A

when they collide

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

how do gas collisions create pressure?

A
  • gas particles have a mass
  • so when they collide exert a force
  • creates pressure
17
Q

what happens when you increase the temperature of a gas in a sealed container?

A
  • energy transferred into kinetic energy stores
  • particles hit walls more frequently
  • more pressure
18
Q

what is the temperature of absolute zero?

A

-273 degrees

19
Q

what happens to particles at absolute zero?

A

very little energy

pretty much still

20
Q

what is the convention of Celsius to Kelvins?

A

add 273

21
Q

why to stretch, compress or bend something MORE than 1 force is acting on it?

A

it would go in the direction of the force if it was just one

22
Q

what is elastic distortion?

A

goes back to original shape

23
Q

what is inelastic distortion?

A

doesn’t return to its original shape

24
Q

what is the equation for a force in calculating a spring constant or linear elastic distortion?

A 
F= k X x
force(N)= spring constant(N/M) X extension(M)
25
Q

how do you calculate work done in stretching a spring?

A 
E= 0.5 X k X x2
Energy transferred(J)= 0.5 X spring constant(N/M) X extension squared (m2)
26
Q

what would a LINEAR line look like on a graph?

A

straight

27
Q

what would a NON LINEAR line look like on a graph?

A

curved

28
Q

what is the method for investigating the extension and work done when applying forces to a spring?

A
  1. measure natural length of spring in mm
  2. add mass, record new length
  3. extension is change in length
  4. repeat, no fewer than 6 times
  5. plot force-extension graph
  6. curve if exceeded limit of proportionality

Physics (11 decks)

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