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

9L Press & Mom vocab

words used for pressure and moments @AJHS

altitude sickness An illness caused by very low air pressure. It can be fatal.
antagonistic muscles Two muscles that work a joint by pulling in opposite directions, eg biceps and triceps.
anticlockwise moment The moment of a force in an anticlockwise direction around a pivot.
bends Another name for decompression sickness.
biceps Muscle found at the front of the arm between the shoulder and elbow.
clockwise moment The moment of a force in a clockwise direction around a pivot.
compressed Squeezed together.
contracting Making something smaller or shorter.
decompression sickness Bubbles in the blood caused if divers come to the surface too quickly. It can be fatal.
effort The force put on a lever to put a force on something else.
exert Push on something.
force multiplier A lever used to turn a small force into a larger one.
fulcrum A point around which something turns. Another name for a pivot.
hydraulic A system which works by transmitting pressure through pipes containing a liquid.
in equilibrium In balance.
lever A simple machine which can increase the size of a force.
load The weight or force on something.
machine Something which alters the size or direction of a force.
moment The turning effect of a force. It is calculated using: moment = force x distance of force from pivot.
newton metre (Nm) The unit for the moment of a force.
pascal (Pa) A unit for pressure. 1 Pa = 1 N/m2.
pivot Another name for a fulcrum.
pneumatic Containing air or gas under pressure, eg tyres.
pressure The force on a certain area, measured in newtons per square metre (N/m2), newtons per square centimetre (N/cm2), or pascals (Pa).
principle of moments The principle of moments states that when something is in equilibrium (in balance), the clockwise moment is equal to the anticlockwise moment.
radius bone The bone in the forearm that the biceps muscle pulls on.
triceps Muscle found at the back of the arm between the shoulder and elbow.
turning effect The moment of a force. The way in which a force turns something around a pivot.
Created by: johncl
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