Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
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

powerpoint ch. 3

sections 1-3

QuestionAnswer
What happens to a ball at rest in the middle of a flat field? It is in equilibrium.
Who was the Greek scientist who was around in the 4th century B.C.? Aristotle
What were the two kinds of motion he studied? natural motion and violent motion
What are the two kinds of natural motion? straight up and down motion and circular motion
Who was the polish scientist who founded astronomy? Copernicus
What did Copernicus believe the Earth did? He believed the Earht revolved around the sun rather that vice versa.
Who was the Italien scientist who supported Copernicus? Galileo Galilei
What two things are a ball on a ramp affected by? gravity and speed
What is a combination of all forces action on an object? Net Force
What do the arrows show on the diagram? The vectors (direction and magnitude)
When applied forces act on the some direction what is the opperation? add the forces
When appplied forces act in opposite directions What is the opperation? subtract the forces
Created by: MSeise