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

Newton's 1st law


State Newton's first law Object at rest will remain at rest and an object in motion will remain in motion unless acted upon by an outside force
What is another name for Newton's first law The law of inertia
What is inertia? ability of objects to resist change
What term is used to describe the amount of matter in an object? mass
What is the difference between mass and weight? Mass is the amount of matter in an object while inertia depends upon gravity
What does inertia depend upon? the amount of mass
Does a 2 kg iron brick have twice as much inertia as a 1 kg iron brick? Twice as much mass? Yes
The law of inertia states that no force is required to maintain motion. Why, then, do you have to keep peddling your bicycle to maintain motion? to overcome friction which will eventually bring you to a stop
Forces of 10 N and 15 N in the same direction act on an object. What is the net force on the object? 25 N
If forces of 10 N and 15 N act in opposite directions on an object, what is the net force? 5 N
If a woman has a mass of 50 kg, what is her weight in newtons? 490 N
A medium-size American car has a weight of about 3000 pounds. What is its mass in kilograms? 1364 kg
If an elephant were chasing you, its enormous mass would be very threatening. But if you zigzagged, the elephant's mass would be to your advantage. Why? Its huge mass would make it difficult to change direction
When you compress a sponge, which quantity changes: mass, inertia, volume, or weight? volume
what is the equation for Newton's first law Weight = m (in kg) times g (9.8 N/kg)
Created by: william myricks
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