Lab4: PostLab Flashcard

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, which includes visible light, radio waves, X-rays, and more, organized by wavelength.

Front

What is wavelength?

Back

Wavelength is the distance between successive crests of a wave, typically measured in nanometers (nm) for light waves.

Front

What is frequency in relation to waves?

Back

Frequency is the number of waves that pass a given point in one second, measured in hertz (Hz). It is inversely related to wavelength.

Front

What happens to frequency when wavelength increases?

Back

When the wavelength increases, the frequency decreases.

Front

What is white light?

Back

White light is a combination of all colors of visible light, which can be separated into a spectrum, such as a rainbow.

Front

What is a flame test?

Back

A flame test is a qualitative analysis technique used to identify the presence of certain metal ions based on the color of the flame produced.

Front

What color flame does strontium produce?

Back

Strontium produces a bright red flame during a flame test.

Front

What is the relationship between energy, frequency, and wavelength?

Back

Energy is directly proportional to frequency and inversely proportional to wavelength. Higher frequency means higher energy.

Front

What is an emission spectrum?

Back

An emission spectrum is a spectrum of the electromagnetic radiation emitted by a source, showing the specific wavelengths of light emitted by atoms or molecules.

Front

What is the significance of the 400-700 nm range?

Back

The 400-700 nm range corresponds to the visible light spectrum that the human eye can perceive.