What is the period of vibration of a wave that vibrates 3 times each second? (Period=1/frequency)

• 3 seconds

• 0.3 seconds

• 30 seconds

• 33 seconds

Tags

NGSS.HS-PS4-1

Which of the following is an example of electromagnetic waves in nature?

• light

• sound

• water

• all of the above

Tags

NGSS.MS-PS4-2

Sound will NOT travel through

• a vacuum

• liquids

• air

• solids

Tags

NGSS.MS-PS4-2

Sonography is a medical technology that can be used to visualize inside the body.

• True

• False

Tags

NGSS.MS-PS4-2

Which of the following is the best definition of refraction?

• change in wave direction due to a change in wave speed

• blocking of a wave by a sharp boundary

• a wave changing directions or moving around something in its path

Tags

NGSS.MS-PS4-2

Which of the following is the best definition of diffraction?

• a wave bending when it encounters a temperature difference

• a wave changing directions or moving around something in its path

• change in wave direction due to a change in wave speed

Where is visible light found on the electromagnetic spectrum?

• in between infrared and ultraviolet light

• at any point with higher frequency than gamma rays

• between gamma rays and cosmic rays

• between radio waves and microwaves

Tags

NGSS.HS-PS4-1

The colors of visible light each correspond to a different frequency of electromagnetic waves.

• True

• False

Tags

NGSS.MS-PS4-1

Visible light occupies the majority of the electromagnetic spectrum.

• True

• False

Tags

NGSS.MS-PS4-1

If you perceive a leaf as green, then the leaf is absorbing all the frequencies of visible light except for that associated with green.

• True

• False

Tags

NGSS.MS-LS1-6