Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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


Simple Machines

Mechanical Advantage The amount a force can be amplified by a simple machine to achieve a task. The amplification occurs at a cost of a trade off for distance moved or energy transferred.
Lever Allows the user to apply torque to an object through the means of a long bar.
Incline Without friction an incline allows the user to raise an object to a height with a force smaller than the weight of the object.
Wheel and Axle Allows for simpler motion via rotation of the wheel upon the axle or by wrapping a rope around the wheel and turning the axle with a lever.
Wedge Allows user to generate great force to split or lift objects
Pulley Allows forces to be spread over a number of ropes depending upon the number of pulleys. This allows the user to apply less force to achieve the same result.
Screw A long incline wrapped around a shaft. Good as fasteners or lifting heavy objects
Efficiency The amount of energy put in compared to energy that comes out/is transferred to the final product. High efficiency = 1.00 or 100%
Conservation of Momentum and Energy Energy and momentum cannot be created or destroyed. Machines cannot produce more energy than is put in but are able to use the energy more efficiently.
Rube Goldberg Machine A machine that uses the simple machines to complete a simple task in a very complex way.
Created by: becook87
Popular Physics sets




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:
restart all cards