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 notes #2

QuestionAnswer
Motion An object is in motion if its distance from another object is changing.
Reference point An object used for comparison
Speed and Velocity Speed is distance over time.
Average speed total distance over total time
Instantaneous speed The speed at the exact moment
Velocity Speed in a specific direction
x axis Time
slope rise over run=distance over time=speed
y axis distance
acceleration Describes a change in velocity
acceleration can be an increase in speed, a decrease in speed, or a change in direction.
acceleration final speed over time
Velocity Describes a change in position
Distance over time graph has a curved line
Velocity over time graph has a straight line
acceleration rise over run=velocity over time= acceleration
Point on a graph piece of data
slope rate of change
Friction The force that two surfaces exert on each other when they rub against each other.
Friction acts in the direction opposite to motion
Strength of friction depends on how hard the surfaces push together and the types of surface involved
static Friction acts on an object that is not moving
Sliding friction acts when two solid objects slide over each other
Rolling Friction occurs when an object rolls over a surface
Fluid Friction occurs when a solid moves through a fluid
Gravity is a force that pulls object towards each other
The law of universal gravitation states that the force of gravity occurs between all objects in the universe
Air Resistance acts opposite to weight over gravity
Air resistance increase as surface area increases
Air resistance increase as velocity increasesh
Created by: lucinda ealey
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