usa test prep light

If your shirt is dyed so that it looks violet, what color of light is being reflected by the dye?

• blue

• indigo

• red

• violet

What object is used to show the color spectrum of which white light is made?

• lens

• microscope

• prism

• telescope

If all the light waves are reflected in equal amounts off an object then the object will appear

• black

• brown

• gray

• white

The visibility of an object is dependent upon

• the volume of the object

• the amount of matter in an object

• the amount of heat absorbed by the object

• the amount of light given off by the object

Why is the moon visible at night?

• it makes its own light

• it reflects light from the sun

• it absorbs energy from the stars

• the cool temperature makes it appear bright

Which best explains why people see carrots as orange?

• the carrots reflect only orange light

• the carrots absorb orange light from the sun

• orange light changes direction when it hits the carrots

• the carrots are opaque and do not allow orange light through

You see an image of yourself in a mirror because light waves are?

• diffracted

• reflected back at you

• refracted through air

• refracted to a focal point

When Santos stands in a swimming pool and looks at his feet, his legs appear to be bent. Which is the term for this phenomenon?

• diffraction

• dispersion

• reflection

• refraction

When light hits a smooth, shiny surface, the light

• reflects

• refracts

• speeds up

• diffracts

Reflection is the bouncing of light rays off a surface. Which situation is not an example of reflection?

• looking at yourself in a mirror

• focusing light through a camera lens

• seeing an image of yourself in a still lake

• looking at your teacher at the front of the class