Practive Test On Light Flashcards
Which of the following is a light reflector?
a. The planet Mars
b. stars
c. lightening
d. Exploding fireworks
a. The planet Mars
Which color of cloth will absorb the most light?
a. white
b. yellow
c. blue
d. Black
d. Black
Brian is wearing a red shirt. Why does it appear red?
a. All colors of the spectrum combine to form red
b. Blue and green waves are bounced off of the shirt
c. The red waves of the visible spectrum are absorbed
d. The red in the visible spectrum is reflected.
d. The red in the visible spectrum is reflected
Why are curved mirrors used in car headlights a. They make things look smaller b. they make things look bigger c. They focus light straight ahead D. They spread light in many directions
d. They spread light in many directions
Why do you see your reflection in the mirror?
a. Light is reflected
b. light is refracted
c. light is absorbed
d. Light is diffused
a. Light is reflected
Explain why a pencil in a glass of water looks bent
The light from the pencil is entering a denser medium so the light slows down, when it slows down it becomes bent.
Why does a green leaf look green
It absorbs all the colors of light, but reflects green
Light travels in a ______ ____
Straight line
Mirrors can change the ________ __ ______
Direction of light
The ______ __ _____ is equal to the _____ __ ______
Angle of incidence
Angle of reflection
_______ objects let all light pass through
Transparent
_________ objects let some light pass through
Translucent
______ objects don’t let light pass through
Opaque
When light enters a denser medium, like water, it slows down and bends. This is called _______
Refraction
A _______ lens makes objects look smaller
Concave
