Unit Test — Unit test Answers

If humans cannot see ultraviolet waves, how can ultraviolet light be used to gather evidence of a crime?

When sound is created, it travels to the ear through a

Where do the three rays in a ray diagram start?

Franny drew a diagram to compare images produced by concave and convex lenses.Which belongs in the area marked X?

Prisms separate ________ light, such as that from the Sun, by wavelength.Which best completes the statement?

Sound Wave A is moving through a medium that is decreasing in temperature.Sound Wave B is moving from a liquid to a gas medium.

A museum sets up a display of fluorescent minerals. Which best describes how electromagnetic waves can be used to enhance the display?

Which refers to the number of wavelengths that pass a fixed point in a second?

After the 1600s, how did observations of light being refracted change the way most scientists thought about light?

The frequency of a wave does not change as it passes from one medium to another.What will most likely happen if a light wave moves from the air into a solid?

The diagram shows the reflection of light from a mirror.

What will occur when the trough of Wave A overlaps the crest of Wave B?

What is occurring when two waves traveling along the same medium meet and cancel each other out?

How is an image formed by a plane mirror?

Which types of waves requires matter to carry energy?

Which example would contain only longitudinal waves?

Henri draws a wave that has a 4 cm distance between the midpoint and the trough. Geri draws a wave that has an 8 cm vertical distance from the trough to the crest.Which statement best describes the energy in Henri and Geri’s waves?

What do diffraction and refraction have in common?

Green plants need light in order to survive. Structures in the leaves absorb light, which in turn, helps plants make their own food.Under which color of light will plants be least likely to make food?

Which best describes what occurs when an object takes in a wave as the wave hits it?