Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Physics
Physics - Particle Model of Matter
| Question | Answer |
|---|---|
| What does 'density' describe? | how closely packed the particles are in a solid, liquid or gas |
| What does all matter contain? | particles |
| How are particles arranged in a solid? | tightly packed in a regular arrangement , can only vibrate |
| How are particles arranged in a liquid? | close together in an irregular arrangement but can flow over each other |
| How are particles arranged in a gas? | spread out and move randomly at different speeds in different directions |
| Why is a piece of iron heavier than a piece of aluminium? | the particles are more closely packed together |
| How do you calculate density? | density = mass / volume |
| What is density measured in? | kilograms per metre cubed (kg/m3) |
| What is mass measured in? | kilograms (kg) |
| What is volume measured in? | metres cubed (m3) |
| How do you convert kilograms to grams? | divide by 1000 |
| How do you convert grams to kilograms? | multiply by 1000 |
| What is 'volume'? | a measure of the amount of space or capacity a shape occupies |
| How do you measure the volume of an irregular shape? | using a displacement can |
| What is always conserved (kept the same) when a substance changes state? | mass |
| What is the internal energy of a substance? | the sum of the total kinetic and potential energies |
| How does heating effect the energy of a substance? | it transfers energy to the substance and increases the energy of the particles |
| What 2 things can heating a substance do? | raise its temperature and change the state of the substance |
| What is 'specific heat capacity'? | the amount of energy needed to increase the temperature of 1kg of a substance by 1 degree Celsius |
| What is 'specific latent heat'? | the amount of energy needed to change the state of 1kg of a substance with no change in temperature |
| What is 'specific latent heat of fusion'? | the amount of energy needed to change 1kg of a substance from a solid to a liquid without a change in temperature |
| What is 'specific latent heat of vaporisation'? | the amount of energy needed to change 1kg of a substance from a liquid to a gas without a change in temperature |
| What happens to kinetic energy if a substance is heated? | it increases |
| Why does pressure increase if temperature increases? | kinetic energy increases, particles collide more which creates more pressure |
Created by:
samfitter
Popular Physics sets