Unit 7- Atomic Structure Quiz

Which of the following is NOT an example of Electromagnetic Radiation (EMR)?

• Light from the sun

• Sound waves

• X rays used by dentists

• Radiant heat from a fireplace

What are the three characteristics of Electromagnetic Radiation (EMR)?

• Wavelength, Frequency, Speed

• Frequency, Amplitude, Speed

• Wavelength, Frequency, Amplitude

• Wavelength, Amplitude, Speed

What is the unit of frequency in the SI system?

• Meters (m)

• Seconds (s)

• Hertz (Hz)

• Joules (J)

What is the speed of light in a vacuum?

• 3.00 x 10^6 m/s

• 2.9979 x 10^8 m/s

• 3.00 x 10^8 m/s

• 2.9979 x 10^6 m/s

According to the relationship c = λν, what does 'λ' represent?

• Speed of light

• Frequency

• Wavelength

• Amplitude

What happens to the frequency of electromagnetic radiation as the wavelength increases?

• Frequency increases

• Frequency decreases

• Frequency remains the same

• Frequency becomes zero

What is the relationship between wavelength (λ) and frequency (ν) in the equation c = λν?

• They are directly proportional

• They are inversely proportional

• They are equal

• They are unrelated

What is the wavelength of an FM radio station that broadcasts at 99.5 MHz?

• 3.013 m

• 2.013 m

• 4.013 m

• 1.013 m

According to the text, what was the prevailing idea about matter and energy at the end of the 19th century?

• Matter and energy were distinct.

• Matter and energy were the same.

• Matter was massless and delocalized.

• Energy was thought to consist of particles.

Who postulated that energy could only be gained or lost in whole-number multiples of quantity hv?

• Albert Einstein

• Niels Bohr

• Max Planck

• Isaac Newton