Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Lenses and Mirrors

Lenses

TermDefinition
lens Transparent material with a curved surface that reflects light rays
telescopes Use mirrors and lenses to gather more light from far away objects than the eye does
microscopes Use two convex lenses with short focal lengths to magnify small, close objects
cameras Gather and bend light with a lens to form an image on light-sensitive film
Shape of concave lens Thinner in middle than at edges
How does a concave lens cause the light to bend? The bend away from each other toward the edges of the lens.
Type of image formed by concave lens Virtual images
Shape of convex lens Thicker in the middle than at the edges
How does a convex lens cause the light to bend? Light waves refract (bend) toward the center and meet at a focal point.
Type of image formed by convex lens Real or virtual
Focal length Distance from lens to where light comes into focus
Two main types of lenses Convex and concave
Plane mirror Flat, smooth mirror in which an image appears upright
Concave mirror Mirror surface is curved inward; light rays come together when reflected
Convex mirror Mirror curved outward; light rays spread out when reflected; shows virtual images
Created by: DC51
Popular Physical Science sets

 

 



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