Light and the Electromagnetic Spectrum

Multiple Choice

Which scientist believed that light consisted of particles?

• Isaac Newton

• Albert Einstein

• James Clerk Maxwell

• Niels Bohr

Multiple Choice

Which type of electromagnetic wave has the highest energy and the shortest wavelength?

• Radio waves

• Microwaves

• X-rays

• Gamma rays

Multiple Select

Which of the following statements about visible light are correct?

• It is the only part of the electromagnetic spectrum visible to the human eye.

• It consists of a range of colors from red to violet.

• It has longer wavelengths than infrared radiation.

• It is detected by our eyes as a rainbow of colors.

Multiple Choice

Which of the following best defines the frequency of a wave?

• The distance from crest to crest on a wave

• The number of waves to cross a point in 1 second

• The speed at which a wave travels

• The height of the wave

Multiple Choice

What determines the color that we see in an object?

• The color that is absorbed by the object

• The color that is reflected by the object

• The color that is transmitted through the object

• The color that is emitted by the object

Multiple Choice

Which of the following statements about spectral lines is correct?

• All elements emit the same spectral lines.

• Spectral lines are unique to each element and help identify them.

• Spectral lines are only produced by sunlight.

• Spectral lines cannot be used to study stars.

• The different frequencies correspond to unique electron energy transitions within atoms or molecules.

Multiple Choice

How many different spectral lines are given off by hydrogen?

• 1

• 2

• 3

• 4

Multiple Select

Which of the following can be determined by studying the spectral lines of a star?

• Element composition

• Temperature

• Density

• Radius

Multiple Choice

Which property of stars can be determined by analyzing the width of their emission lines?

• How fast the material is moving

• The age of the star

• The distance from Earth

• The color of the star