Unit 9 Review Flashcards
When light strikes an object, it can pass through, be reflected, or be …
absorbed
A window is an example of what type of object?
transparent
Only some light will pass through a leaf hanging on a tree. This means that a leaf is ….
translucent
A metal windmill is blocking the light and not letting any of it pass through. Objects that don’t let light pass through are called ….
opaque
True or False
White light can be made of any two of the primary colors of light
False
True or False
White light has a wavelength between the wavelengths of blue and yellow
False
True or False
White light contains all the colors of the rainbow
True
What is refraction?
The bending of light as it travels from one type of matter to another.
Why does a red apple appear red to people?
The surface of the apple absorbs all the colors of the visible spectrum except red and reflects the red light back to people’s eyes.
Red and blue are primary colors of light. What is another primary color of light?
green
True or False
When light hits a dark-colored surface, it makes the surface cooler
False
True or False
Light-colored surfaces absorb more visible light than dark-colored surfaces.
False
True or False
Light energy is not absorbed by dark-colored surfaces
False
True or False
Dark-colored surfaces absorb more visible light than light-colored surfaces
True
When light energy is absorbed by an object, it is often changed to which kind of energy?
Heat energy
