Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

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 (0)
Remaining cards (0)
Know (0)
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

2014fhp newtons laws

newtons laws of motion

QuestionAnswer
What is Newton's Third Law? If an object exerts a force on another object, the second object exerts a force of equal strength in the opposite on the first object.
What is an easy way to remember this? Action/Reaction
Do these forces cancel eachother out? No
When you drop a pencil, is just the pencil accelerating towards the earth? No, they are accelerating towards each other but because the earth's inertia is so big, you do not notice it accelerating.
Who made this law? Isaac Newton
What is the formula for momentum? Mass x Velocity
What is momentum? A characteristic of a moving object that is related to the mass and velocity of a moving object.
What is the unit for momentum? kilogram times meter per second, kg*m/s
Which has more momentum: an elephant or a flea? You don't know because you don't know the speed they are moving at.
which has more momentum: A car moving at 2 m/s and weighing 500 kg, or a dog moving at 110 m/s and weighing 10 kg? the dog, 1100 kg*m/s is more momentum than 1000 kg*m/s
Created by: 2014fhp
 

 



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