Wave Calculations Practice

What does energy have to do with wavelength and frequency?

• The higher the frequency the less energy the wave has.

• The lower the frequency the more energy the wave has.

• The shorter the wavelength the more energy the wave has.

• The longer the wavelength the more energy the wave has.

Tags

NGSS.HS-PS4-1

Which of the following is TRUE about the frequency and energy in electromagnetic waves?

• As the frequency of an EM wave increases, the energy also increases.

• As the frequency of an EM wave increases, the energy decreases.

• The Planck's constant increases when the frequency and energy of an EM wave increase.

• There is no relation between the energy and the frequency of an EM wave.

Tags

NGSS.HS-PS4-1

Violet light has a wavelength of

4.10 x 10^-12 m. What is the frequency?

• 1.23 x 10 ^-3 Hz

• 7.31 x 10¹⁹ Hz

• 1.37 x 10¹² Hz

• 3.0 x 10⁸ Hz

Tags

NGSS.HS-PS4-1

The frequency of violet light is 7.5x10¹⁴ Hz. What is its wavelength?

• 4.0x10^-7 m

• 4.0x10⁷ m

• 2.25x10²³m

• 2.25x10²³ Hz

Tags

NGSS.HS-PS4-1

What is the frequency of red light that has an energy of  $2.71\times10^{-19}$  J?

•  $4.1\times10^{-14}$  Hz
  

•  $4.1\times10^{14}$  Hz

•  $1.79\times10^{-52}$  Hz

•  $1.1\times10^{27}$  HZ

Tags

NGSS.HS-PS4-1

Calculate the energy of a  photon of light with a frequency  of $6.165\ \times10^{14}$   Hz.

•  $4.087\times10^{19}$  J
  

•  $4.087\times10^{-19}$  J

•  $4.087\times10^{49}$  J

•  $4.087\times10^{-49}$  J

Tags

NGSS.HS-PS4-1