Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

CircularMotion

Circular Motion

TermDefinition
centripetal force force of object toward center of a circle that causes object to move in a circle
centripetal acceleration acceleration of object toward the center of a circle, speed constant while direction changes
uniform circular motion speed is constant (does not speed up or slow down); speed's direction changes; object experiences a centripetal acceleration
tangential velocity velocity tangent to the circular motion; perpendicular to centripetal force
Newton's Law of Universal Gravitation Objects attract other objects with a force that is directly proportional to the product of their masses, and inversely proportional to the square of the distance between them.
gravitational constant G in the gravitational force equation; units: N m^2 / kg^2
universal gravitational force gravitational force is proportional to the inverse; square of the distance between two objects the greater the mass, the larger the gravitational force; r is the distance between the center of mass of two objects
weightlessness lack of normal force
torque measure of a forces tendency to rotate an object around an axis torque increases as lever arm length increases; units: N m
lever arm distance between force and pivot point; the longer the lever arm, the greater the torque
rotational equilibrium the object does not rotate; the sum of the torques equals zero
center of mass the point where all the mass is concentrated. When an object is supported at its center of mass there is no net torque acting on it
orbit gravity is the centripetal force that causes orbit; objects in orbit are constantly falling; requires a very large mass for an object to gravitationally orbit it
Created by: pnesrsta
Popular Physics sets

 



Voices

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:
Retries:
restart all cards