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

Physics chapter 2

Circular Motion

angle at the centre of a circle (rads) (θ) = arc length(s) / radius of arc(r)
Radians in a full circle
rotational frequency (Hz) no. of turns in a given time (revs per min - rpm) =1/T
angular speed (w) (rads-1) angle turned through in one sec =2πf or 2π/T =linear speed(v) / radius
linear speed (v) (m.s-1) distance covered per unit time =radius(r) x angular speed(w)
centripetal acceleration(m.s-2) acceleration in a circle, directed towards the middle =radius(r) x angular speed(w)^2 =linear speed(v)^2 / radius(r)
centripetal force(N) is the resultant force =mass x velocity^2 / radius =mass x radius x angular speed(w)^2
centripetal force -increases with mass -increases with square of speed -decreases as radius increases
period (T) seconds for one revolution =1/f
linear displacement(s) (metres) distance traveled along circle =angular displacement(θ) x radius
angular displacement(θ) (rads) angle traveled through =2π x t / period(T) =angular speed(w) x t
rads into degrees 180/π x rad answer
weight of object in circular motion =mass x acceleration(centripetal)
centripetal force in circle make an equation of forces e.g = tension - weight
Created by: larasansun
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