Save
Busy. Please wait.
or

Don't have an account?  Sign up
or

taken

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.
focusNode
Didn't know it?
click below

Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
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

# lesson3.3

QuestionAnswer
the forearm of the human body works like a third-class lever. T
when you turn a screw into a piece wood, the input force of the screwdriver is converted to an output force by the threads of the screw. F
the efficiency of such a machine is determined by multiplying the efficiencies of each simple machine. T
what is a simple machine, and what are the six types of simple machines? a simple machine is work at only one movement (lever, wheel and axel, inclined plane, wedge, screw, pulley)
which factors determine whether a lever is a first-class lever, or third-class lever? location, fulcrum, input, output force.
how does the input force applied by a larger gear change when the force is applied to a smaller gear. it decreases
incline plane ramp, stairs
lever hammer handle, crowbar
wheel and axel shaft
drill bit screw
sailboat mast pulley
wheelchair ramp inclined plane
a wheel barrel wedge
a hockey stick third-class lever
an oar first-class lever
what is a compound machine a compound machine is a machine that uses 2 or more motion
how is the efficiency of a compound machine calculated multiplying the efficiencies
how can gears change the size and direction of the force the input force is applied to a larger gear
Created by: spiveshy5637

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:

• SPACEBAR - flip the current card
• LEFT ARROW - move card to the Don't know pile
• RIGHT ARROW - move card to Know pile
• BACKSPACE - undo the previous action

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