Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
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.
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


Unit F1 Study Guide

relative motion motion that is based on a frame of reference
motion any change of position
acceleration change in the speed or direction of an object's motion
position describes a certain place
gravity force that pulls all objects towards each other
force any push or pull
newton metric unit of force
frame of reference things around you used to describe motion
speed measure of an objects change of position during a unit of time
weight measure of the force of gravity on an object
friction force that keeps two objects that are touching from easily sliding past each other
proton particle in an atom that has a positive charge +1. They are found in the nucleus of the atom.
neutron particle in an atom that has no charge, so it is neutral. They are found in the nucleus of the atom.
electron particle that has a single negative charte -1. They move around the nucleus of an atom.
atom tiny particles that make up all matter
What are the three particles that make up an atom? protons, neutrons, electrons
To find a swimmer's speed, you need to know the distance he or she swam and the time it took
to measure force, you can use a _____. spring scale
Created by: jeffersonkb



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