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

Speed

QuestionAnswer
What is the S.I unit for speed? m/s
What are the two main factors that affect speed? Distance and time
Speed can be measured using a . . . speedometer
What is the fastest possible speed at which energy can travel? The speed of light, 299792498m/s
What is the difference between velocity and acceleration? velocity is the rate at which the position changes and acceleration is the rate at which the speed changes.
Define velocity. The rate of change of a position.
Define acceleration. The rate of change of the velocity of an object
What is faster the speed of light or the speed of sound? The speed of light is faster that is why you see lighting before you hear thunder.
What is the difference between speed and velocity? when talking about velocity we must include a direction, this is not nesscessary when talking about speed.
Created by: emma burrowes