Chem Unit 3 Review for Test

The number of waves that pass a given point every second

• Frequency

• Wavelength

• Energy

• Electromagnetic Spectrum

The distance between the crests of two waves

• Frequency

• Wavelength

• Energy

• Electromagnetic Spectrum

Broad range of radiation that carries energy as waves

• Frequency

• Wavelength

• Energy

• Electromagnetic Spectrum

Which two variables of the electromagnetic spectrum have a direct relationship?

• Crests and trough

• energy and frequency

• wavelength and energy

• frequency and wavelength

As wavelength increases: frequency,_____________ and energy ______________.

• Increases; decrease

• Increases; increases

• Decreases; decreases

• Decrease; increases

On the electromagnetic spectrum, radio waves are found on the end of the spectrum considered to possess a low amount of energy. Which statement most accurately describes the wavelength/frequency relationship present in radio waves?

• Radio waves possess both low frequencies and small wavelengths.

• Radio waves possess both high frequencies and large wavelengths.

• Radio waves possess high frequencies and small wavelengths.

• Radio waves possess low frequencies and large wavelengths.

Describe the waves the arrow is pointing at.

• long wavelength / low energy

• long wavelength / high energy

• short wavelength / low energy

• short wavelength / high energy

The visible light that we can see travels in waves. Blue light has a wavelength of 450 nm and orange light has a wavelength of 600 nm. Based on this information, what is true about the energies of blue and orange light?

• Energy of blue light will be higher than that of orange light.

• Energy of blue light will be lower than that of orange light.

• Energy of blue light and orange light will be the same.

• Wavelengths of light and energy of light are independent of each other.

Calculate the wavelength of light that has a frequency of 5.2 x 10¹² Hz. 

• 5.8 x 10 ^-5 m
• 5.8 x 10 ^-7 m
• 5.19 x 10 ¹⁴ m
• 1.56 x 10 ²³ m

If an AM radio station broadcasts at
9.95 x 10⁵ Hz, what is the wavelength of this radiation?

• 6.59 x 10^-28 m
• 1.01 x 10^-6 m
• 3.32 x 10^-3 m
• 302 m