Waves and Light Equation

24.1% of all the isotopes of a an element have a mass of 75.23 amu,

48.7% have a mass of 74.61 amu, and

27.2% have a mass of 75.20 amu.
What is the average atomic mass of this element?

• 74.92 amu

• 75.01 amu

• 24.97 amu

• 74.51 amu

An element has two main isotopes:

X-35 (mass = 34.97 amu, abundance = 75.8%)

and X-37 (mass = 36.97 amu, abundance = 24.2%).
Calculate the average atomic mass.

• 36.50 amu

• 36.00 amu

• 35.00 amu

• 35.45 amu

The figure above shows parts of a wave.
 Which letter represents wavelength? 

• S

• T

• W

• X

Tags

NGSS.HS-PS4-1

Which of these correctly labels the TOP and BOTTOM of a wave?

• S-Crest

  X- Trough

• S-Amplitude

  X-Crest

• S-Crest

  X-Amplitude

Tags

NGSS.HS-PS4-1

Which wave has greater wavelengths?

• 1

• 2

Tags

NGSS.HS-PS4-1

Which wave has greater Frequency?

• 1

• 2

Tags

NGSS.HS-PS4-1

Which wave has greater Energy?

• 1

• 2

Tags

NGSS.HS-PS4-1

Wavelength has an INVERSE relationship with:

• Energy

• Frequency

• Both Energy & Frequency

Tags

NGSS.HS-PS4-1

Frequency has a DIRECT relationship with:

• Energy

• Wavelength

• Both Energy & Wavelength

Tags

NGSS.HS-PS4-1

'c' is used to represent:

• speed of light

• frequency

• wavelength

• amplitude

Tags

NGSS.HS-PS4-1