Save
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
share
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

Chapter 5 Vocab.

Work & Machines

TermDefinition
Work Transfer of energy that occurs when a force makes an object move; measured in joules.
Power Amount of work done, or the amount of energy transferred, divided by the time required to do the work or transfer the energy; measured in watts.
Machine Device that makes doing work easier by increasing the force applied to an object, changing the direction of an applied force, or increasing the distance over which a force can be applied.
Input Force The force that is applied to the machine.
Output Force The force applied by the machine.
Mechanical Advantage Ratio of the output force exerted by a machine to the input force applied to the machine.
Efficiency Ratio of the output work done by the machine to the input work done on the machine, expressed as a percentage.
Simple Machine Machine that does work with only one movement-lever, pulley, wheel & axle, inclined plane, screw, & wedge.
Lever Simple machine consisting of a bar free to pivot about a fixed point called the fulcrum.
Pulley Simple machine that consists of a grooved wheel with a rope, chain, or cable running along the groove; can be either fixed or movable.
Wheel & Axle Simple machine that consists of a shaft or axle attached to the center of larger wheel, so that the shaft & the wheel rotate together.
Inclined Plane Simple machine that consists of a sloping surface, such as a ramp, that reduces the amount of force needed to lift something by increasing the distance over which the force is applied.
Screw Simple machine that consists of an inclined plane wrpped in a spiral around a cylindrical post.
Wedge Simple machine that is an inclined plane with one or two sloping sides.
Compound Substance formed from two or more elements in which the exact combination & proportion of elements is always the same.
Created by: keissyg
Popular Physics 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