Save
Upgrade to remove ads
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

science test on 2/7

science test

QuestionAnswer
motion an objects change in position relative to a reference point
speed the distance traveled by an object divided by the time taken to travel the distance
velosity the speed of an object in a particular direction. must include reference direction*velosity changes if speed or direction changes*
acceleration the rate at which velocity changes. object accelerates if its speed direction or both change
forces a push or pull on an object. newtons (N)
net force the combination of all the forces acting on an object
balanced forces when the forces on an object produce a net force of 0n
unbalanced forces when the net force on an object is not 0n
friction a force that opposes motion between two surfaces that are in contact
greater the force = greater the friction
rougher the surface = greater the friction
kinetic friction = moving friction
what are two types of kinetic friction? sliding and rolling friction
static friction not moving friction
ways to reduce friction adding lubricants (oil or wax) switching from sliding to rolling friction making the surfaces smoother
ways to increase friction make the surface rougher or to increase force
gravity a force of attraction between objects that is due to their masses
all matter is affected by what? gravity, all objects experience an attraction towards other objects (depends on mass)
force must be applied to overcome what? to overcome gravitational force
newtons law of universal gravitation all objects in the universe attract each other through gravitational force, the size of force depends on the mass and the distance between the objects
part 1 gravitational force increases as mass increases
part 2 gravitational force decreases as distance increases
weight a measure of gravitational force on an object
mass the amount of matter in an object
Created by: maddybrz
Popular 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