Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
When we see a colored object, what are we really seeing: light that has been absorbed, light that has not been absorbed or light that has been refracted?
|
Light that has not been refracted
|
|
Light is one small part of a range of energy known as:
|
the electromagnetic spectrum
|
|
The part of the spectrum that humans can see is called
|
visible light
|
|
Which procedure allows light to pass through your body?
|
X-Rays
|
|
Why is it good to wear light colored clothes on a hot day?
|
Because dark objects absorb more light that light objects
|
|
Materials that do not allow light to pass through
|
Opaque
|
|
Dark colors usually_____ light
|
absorb
|
|
The bouncing of light from a surface
|
Reflection
|
|
Name a few examples of opaque items:
|
books, chairs, walls, floors
|
|
Materials that only allow some light to pass through
|
translucent
|
|
Name examples of translucent materials
|
Wax paper, bubble paper
|
|
A material that allows light to pass through
|
translucent
|
|
The bending of light as it moves from one material to another
|
refraction
|
|
Lens that is thicker at the edges than in the middle
|
concave lens
|
|
Lens that spreads light waves apart
|
concave lens
|
|
This lens makes objects look smaller
|
concave
|
|
This lens is thicker at the center than on the edges
|
convex lens
|
|
This lens bends light waves inward making them come together
|
convex
|
|
This lens can be used as a magnifier
|
convex lens
|
|
This type of lens is used as the lens on a camera
|
convex lens
|
|
Which of the following surfaces would bounce back almost all the light waves that hit it: white wall, plastic wrap, mirror or stained glass window?
|
Mirror
|
|
Light is a form of energy that travels in:
|
Waves
|
|
How long does it take for sunlight to hit the Earth?
|
8 minutes
|
|
Why do bones appear white on X-Rays?
|
Because bones absorb more light than muscles or skin making it appear lighter
|
|
Do waves with a high frequency carry more enery than waves with lower frequencies?
|
YES
|