Unit Test — Unit test Answers

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

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

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.

Which part of the electromagnetic spectrum has the longest wavelengths?

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

Sound waves are produced when something is caused to

Which equation should be used to calculate the speed of a wave?

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 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?

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

Which part of the electromagnetic spectrum is necessary for the sense of sight in humans?

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?

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

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

What do diffraction and refraction have in common?

When light bends as it passes from one transparent object to another, the light is ________.Which best completes the statement?

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?

On top a coiled spring labeled Wave A with coils, which are widely spaced then tightly spaced then widely space. On bottom a coiled spring labeled Wave B with coils, which are widely spaced then very tightly spaced then widely space.

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