Quizizz! Re-grade

Question:

Correct Answer: Reflection

Explanation: Reflection is the correct answer because the action of a something (like a wave) bouncing off a surface is a form of reflection. The light is being "reflected" making it bounce back, not "refracted". Refraction, however, is something completely different which has to do with a change in angles and direction.

Question:

Correct Answer: Only a small part

Explanation: Though most of it isn't, part of the electromagnetic spectrum like visible light is visible meaning only a small part of it is visible. That part is known as the visible spectrum.

Question:

Correct Answer: False

Explanation:

Light is not a mechanical wave because it doesn't require matter or a medium to be produced and is not the vibration of molecules. It is a electromagnetic wave and can travel through space. 

Question:

Correct Answer: Microwaves

Explanation:
In order to receive and send information with your cellphone, microwave signals are transmitted between the two phones. Cellphones use microwaves.

Question:

Correct Answer: back and forth

Explanation:
In a transverse wave, the motion is moving back and forth or oscillating in a rhythm. This means that in a transverse wave particles move back and forth.

Question:

Correct Answer: solid molecules are packed tightly

Explanation:
Sound is able to move through a solid faster than a gas because solid molecules are packed tightly and closer together meaning less energy is lost between the traveling of molecules. With gas molecules, they are too far spread. When sound has to travels between them, energy is lost and used up resulting in sound traveling slower.


Question









Correct Answer: wavelength, lower

Explanation:
Since the frequency is the amount of waves pass by a certain point in a second, when the wavelengths are longer that means less waves will pass by since they are larger. If less waves pass by it results in a lower frequency. Therefore, the longer the wavelength the lower the frequency.