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

science revision

semester 2 topics

newtons the unit force is measured in
balanced forces two equal forces acting on an object that don't change the motion
gravity a non-contact force that pulls objects to the core of the universe
contact force the physical push or pull of an object
friction two objects trying to slide across each other in opposite directions causing the moving object to slow down.
spring balance the device used to measure weight in newtons
weight weight is dependent on the gravitational pull towards the center of the planet
solar eclipses when the sun and moon are in alignment from earth and the sun is in shadow.
mass the amount of matter that is in an object. It will always stay the same.
spring tide when the sun and moon are on the same side of earth causing a strong gravitational pull on the water on earth toward the moon
earths rotation Earth rotates on its axis causing day and night
probe designed and sent into space without any crew to explore various aspects of the solar system
static electricity negatively charged electrons when rubbed of on a positive surface, want to jump back to the negative surface because
telescope object designed to make distant objects look nearer and can collect data by taking photos
buoyancy a force that acts in water and pushes objects upwards.
heliocentric The current model of the universe that the sun is at the center and the planets, earth and moons all revolve around it.
geocentric The model of the universe that the earth is at the center and the planets, sun and moon all revolve around it.
planet order Mercury, Venus, earth, mars, Jupiter, Saturn, Uranus, Neptune, Pluto
mitochondria produces energy and is the 'power house' of the cell
cell wall a protective layer that is found on the outside of all plant cells
microscope a piece of equipment used to view very small objects up close.
Created by: bjohnson.12



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