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
edit
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

Elevator Physics

Elevator situation and Forces

QuestionAnswer
Man is in elevator moving up at constant velocity. Is "apparent weight" bigger, smaller, or same as actual weight? Same
Man is in elevator at rest. Is "apparent weight" bigger, smaller, or same as actual weight? Same
Man is in elevator moving up and accelerating. Is "apparent weight" bigger, smaller, or same as actual weight? Bigger
Man is in elevator moving up and decelerating. Is "apparent weight" bigger, smaller, or same as actual weight? Smaller
Man is in elevator moving down and accelerating. Is "apparent weight" bigger, smaller, or same as actual weight? Smaller
Man is in elevator moving down and decelerating. Is "apparent weight" bigger, smaller, or same as actual weight? Bigger
weight measure of the force of gravity acting on an object
another word for scale reading Fn
actual weight if Fn=mg
apparent weight if scale reading does not equal mg
when does Fn=mg when body is at rest or moving vertically with constant velocity, or when acceleration is 0m/s^2 (1st law)
-before ride, middle of ride, after ride
when is Fn>mg -at the start of the upward journey when acceleration is increasing upwards, or when the elevator slows down at the end ofd the journey where acceleration acts upward to balance out the Fn
when is Fn<mg -when the body is acc. vertically, acc. does not equal 0 (2nd law) -when the elevator is slowing down at the end of the upward -when the elevator began moving down on the downward journey (where acc. is moving down)journey (acc. is downwards, opposite
when Fn > mg (short) -begin moving/speeding up (upward journey)
-begin slowing down (downward journey)
when Fn < mg (short) -slowing down (upward journey)
-begin moving/speeding down (downward journey)
formula for Fn Fn + W= ma
or
Fn = ma - w
(bc EFy = ma)
Created by: Drmiriamabe
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