Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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

P4.3 - Thermal

Thermal Physics - OCR A2 Physics

Define heat: A measure of the total thermal energy in a system.
Define temperature: A measure of the average kinetic energy of particles.
Define specific heat capacity: The energy required to raise the temperature of 1kg of substance by 1 degree.
Define specific heat of vaporisation: The energy required to change 1kg of liquid into 1kg of gas at constant temperature.
Define internal energy: The sum of all the kinetic and potential energies of molecules within a substance.
What is the pressure law? At constant volume, pressure is directly proportional to the temperature.
What is Boyle's law? At a constant temperature, pressure and volume are inversely proportional.
What is Charles' law? At a constant pressure, the volume is directly proportional to the temperature.
Define pressure: Force per unit area, it is the result of collisions between particles themselves, or particles and the walls of their container.
Give three assumptions used in the kinetic theory of gases: The gas consists of a large number of molecules. The molecules move randomly. Collisions are elastic.
What is the equation for the kinetic energy in a single atom? KE = 3/2KbT
What is the equation for the kinetic energy in a mole? KE = 3/2nRT
What is an absolute scale of temperature? A temperature scale measured from absolute zero in kelvins.
What changes and what remains constant during a change in state of a system? The internal energy changes, the temperature doesn't.
What is Brownian motion? The observation of random motion in air/smoke particles. The experiment saw the smoke particles appear as bright specks moving in a completely random motion.
What happens to a gas as the temperature increases? The average speed increases, the maximum speed increases, and there is a wider range of speeds.
What is an ideal gas? A gas that has internal energy only in the form of random kinetic energy.
Created by: Sparksy
Popular Physics sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards