1st Semester Test Reivew

Front

What is the absorption rate of a black tee shirt?

Back

The absorption rate of a black tee shirt is 610 Lux.

Front

True or False: When colored light is mixed from two sources, the new color is less bright in appearance.

Back

False

Front

Explain the movement of light from the sun to a red flower in a green field.

Back

The white light (ROYGBIV) is transmitted to the red flower & green field. The color red from the flower is reflected to the eye, while the color green from the field is absorbed and appears black in your eye.

Front

What happens to particles when the temperature of matter decreases?

Back

The particles slow down and move closer together.

Front

Why is it important to repeat experiments using the same methods?

Back

If the results are the same, replication of the investigation helps to confirm the results.

Front

What is white light composed of?

Back

White light is composed of the colors red, orange, yellow, green, blue, indigo, and violet (ROYGBIV).

Front

What is reflection in terms of light?

Back

Reflection is the bouncing back of light when it hits a surface.

Front

What is absorption in terms of light?

Back

Absorption is when light is taken in by an object and not reflected.

Front

What is the difference between reflection and absorption?

Back

Reflection is when light bounces off an object, while absorption is when light is taken in by an object.

Front

What is the significance of the color of an object in terms of light?

Back

The color of an object is determined by the wavelengths of light it reflects; for example, a red object reflects red light and absorbs other colors.