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

Motion and Forces

TermDefinition
reference point an object that appears to stay in place
motion when an object changes position over time when compared to a reference point
speed the rate at which an object moves
velocity the speed of an object in a particular direction
acceleration the rate at which velocity changes
deceleration acceleration in which velocity decreases
centripetal acceleration acceleration that occurs in a circular motion
force a push or a pull on an object
newton (N) The SI Unit of force
net force the force that results from combining all the forces exerted on an object
unbalanced force forces on an object that cause the net force to be a number other than zero
balanced force forces on an object that cause the net force to be zero
contact force forces exerted on objects when objects touch
non-contact force forces that are exerted on objects without touching the objects
friction a force that opposes motion between two surfaces that are touching
sliding friction a force that opposes motion when two surfaces slide past each other
rolling friction a force that opposes motion when an object is on rollers or wheels
fluid friction a force that opposes motion in a fluid, such as liquids or gases
static friction a force that opposes motion when a force is applied to an object and the object does not move
lubricant a substance applied to surfaces to reduce the friction between them
gravity a force of attraction between objects that is due to their masses
weight a measure of the gravitational force exerted on an object
mass the amount of matter that something is made of
law of universal gravitation law that states that all objects in the universe attract each other through gravitational force ; depends on their masses and the distance between them
Created by: pdobias
Popular Physical Science 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