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

light definitions

definitions for various keywords of the light part of sound and light topic

TermDefinition
Light A form of energy that travels by electromagnetic waves
Reflection When light bounces off a surface
Regular Reflection When light is reflected off smooth surfaces such as a mirror
Object Location that the rays of light have come from prior to striking the mirror
Image Location from which the rays of light appear to be coming
Object Distance Distance between mirror and object
Image Distance Distance between mirror and image
Incident Ray The ray of light falling onto a mirror from an object or light source
Normal An imaginary line radiating perpendicularly from the mirror at the point where the incident ray strikes the mirror
Reflected Ray The ray of light bouncing off a mirror
Angle of Incidence Angle between the normal and the incident ray
Angle of Reflection Angle between the normal and the reflected ray
Parallax Relative movement of two objects due to the movement of the observer
Magnified Image When the image height is greater than the object height
Diminished Image When the image height is less than the object height
Inverted Image Image is upside down
Erect Image Image is same side up
Laterally Inverted Image When the right side of the object is on the left side of the image and vice versa
Real Image When light rays actually intersect
Virtual Image When light rays appear to intersect
Refraction of Light When light bends on passing from one medium to another (light bends towards the normal in a denser substance).
Total Internal Reflection When light is reflected back from a boundary between two mediums; it occurs when the light is travelling from the dense into the less dense medium, striking the boundary with an angle of incidence greater than the critical angle
Spectrum Range of wavelengths present in the electromagnetic radiation
Dispersion The separating out of different wavelengths of light
luminous An object that is able to generate its own light source eg sun, bulb, torch.
Visible light The portion of the electromagnetic spectrum that is visible to the human eye consisting of ROYGBIV colours.
Concave Mirror A mirror that bulges inwards away from the light and magnifies close objects. eg dentist mirror
Plane Mirror A mirror that has a flat reflective surface
Convex Mirror A mirror that bulges outwards towards the light and makes images appear smaller and upright. Gives wider view eg roadside mirrors
Law of Reflection Angle of Incidence equals the angle of reflection on plane mirrors.
ROYGBIV dispersion of white light into colours of the rainbow (Red, orange, yellow, green, blue, indigo, violet) in order from least refracted Red light to most refracted Violet light.
Created by: simkar
Popular Physics 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