Particles and density

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  • Created by: bertie321
  • Created on: 03-10-21 17:29
what is the formula for density?
mass/volume
1 of 17
A piece of wood has a mass of 8g and a volume of 10cm³. what is the density?
8/10=0.8 g/cm³
2 of 17
how does heating affects the particles in a substance or object?
when particles are heated they have more energy so vibrate more and therefore when it cools down the particles vibrate less
3 of 17
how does the temperature of an object changes with time while being heated?
the temperature of the object changes until it is changing states as the energy is being use to break the bonds up so they are able to freely move eg: when changing from a solid to a liquid
4 of 17
what is specific heat capacity?
the amount of energy it takes for 1kg of something to increase by 1 degree Celsius
5 of 17
what is latent heat of fusion?
it is the amount of energy is requiring to change 1kg of solid into a liquid
6 of 17
what is latent heat of vaporisation?
it is the amount of energy is required to change 1kg of liquid into a gas
7 of 17
what is the difference between specific heat capacity and specific latent heat?
the difference is that specific heat capacity is the temperature change and specific latent heat is the changing of states.
8 of 17
what is the equation for specific heat capacity?
= energy transferred/mass x temperature change
9 of 17
Sadie is experimenting with a model steam engine. Before the 0.25 kg of water begins to boil it needs to be heated from 20°C up to 100°C. If the specific heat capacity of water is 4,180 J/kg°C, how much thermal energy is needed to get the water up to boil
energy transferred/mass x temperature change
energy transferred= 0.25x4,180x(100-20)=83,600
10 of 17
how does the movement of particles causes gas pressure?
when a gas is heated up the particles move around. when they move around they hit each other and the sides of the can and therefore causes pressure from the collisions.
11 of 17
what is absolute zero?
is it the coldest temperature scientifically possible
12 of 17
how do you convert celsius to kelvin formula?
0°C = 0 + 273.15 = 273.15 K. so the formula is to add 273.15
13 of 17
why is more than one force needed to distort an object?
because if you only put on force on an object you don't allow to distort an object because you need two counteracting forces to distort an object
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what is the relationship between force and extension for a spring?
it is that the more force you put on a spring the more the spring will extend so if you put double the original amount of force the spring will double in the original amount of extension.
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what is the force equation?
extension x the spring constant.
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what is the formula for energy transferred?
1/2 x the springs constant x exstension²
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Other cards in this set

Card 2

Front

A piece of wood has a mass of 8g and a volume of 10cm³. what is the density?

Back

8/10=0.8 g/cm³

Card 3

Front

how does heating affects the particles in a substance or object?

Back

Preview of the front of card 3

Card 4

Front

how does the temperature of an object changes with time while being heated?

Back

Preview of the front of card 4

Card 5

Front

what is specific heat capacity?

Back

Preview of the front of card 5
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