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

1st midquarter test


units used for force Newtons [n]
units used for pressure newtons/centimeters2 [n/cm2]
units used for area centimeters2 [cm2]
units used for distance meters [m]
units used for speed meters/second [m/s]
units used for reaction time seconds [s]
units used for velocity meters/second [m/s]
units used for length meters [m]
units used for width meters [m]
how are mass and weight different mass is a measurement of matter and weight is a measurement of how gravity affects mass
define force a push or a pull
whats the formula for pressure p=f/a
as a mass increases an objects inertia ... increases
define inertia an objects resistance to a change in state of motion
why is newtons first law also called "the law of inertia" because newtons first law is based on the property of inertia
what is newtons 1st law an object in motion stays in motion, an object at rest stays at rest unless acted on by an outside force
define constant speed a speed that doesnt change
define instantaneous speed a speed at a particular instant in time
define average speed total distance divided by total time
can average speed and instantaneous speed be the same? when? yes when traveling at a constant speed
what is the distance between speed and velocity velocity includes direction and speed does not
-whats the speed formula -re-write it, solved for time - re-write it, solved for distance -s=d/t -t=d/s -d=t*s
as a driver increases his/her speed the minimum safe following distance ... ( increases or decreases) increases
how does talking on a cell phone affect a drivers reaction time (increases it or decreases it) increases it
what is the minimum safe following distance measuring the distance traveled before a person reacts
when measuring a reaction time, what two events are we measuring the time between when an event occurs and when a person reacts
Created by: rachel111
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