3.91 Light as a Wave

A wave cycles 5 times in one second, then its frequency is 2.5 Hz (1 point)

• True

• False

Tags

NGSS.HS-PS4-1

Sound waves are part the EM wave spectrum (1 point)

• True

• False

A change in a light wave's amplitude would change its color. (1 point)

• True

• False

Electromagnetic radiation with a wavelength of 700 nm would be: (1 point)

• ultraviolet light

• x-rays

• red light

• blue light

Tags

NGSS.HS-PS4-1

Gamma Rays are a type of electromagnetic radiation. (1 point)

• True

• False

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Colors appear different to us because of their photons' different: (1 point)

• wavelength

• amplitudes

• magnetic fields

• polarization

• speeds

Tags

NGSS.HS-PS4-1

Select one of the following that does not belong in our EM spectrum. (1 point)

• gravity waves

• ultraviolet rays

• x-rays

• gamma rays

• Radio waves

If a wave's frequency doubles, its wavelength (1 point). HINT: Think about the wave equation (c=ƒλ)

• is halved.

• is also doubled.

• is unchanged, as c is constant.

• is now 4x longer.

• becomes 16x longer.

Tags

NGSS.HS-PS4-1

Which of the following type of electromagnetic radiation has the lowest energy? (1 point)

• x-ray

• ultraviolet

• gamma

• visible

• infrared

Tags

NGSS.HS-PS4-4

Electromagnetic radiation with a wavelength of 550 nm would be: (1 point)

• x-rays

• ultraviolet light

• blue light

• red light

• green light

Tags

NGSS.HS-PS4-1