Gr 8 Crash Course Light and Spectroscopy Quiz

What is light?

• A type of sound

• A form of matter

• A type of gas

• A form of energy

What is the most important feature of light's wavelength?

• Its speed

• Its direction

• Its temperature

• Its color

What is the color of light with a shorter wavelength than what our eyes can see?

• Ultraviolet

• Infrared

• Radio wave

• X-ray

What determines the kind of light an object emits?

• Its size

• Its shape

• Its distance from Earth

• Its temperature

What is the key to determining the composition of astronomical objects?

• Their size

• Their emitted light spectrum

• Their shape

• Their color

What happens to the wavelength of light when an object is moving toward an observer?

• It gets longer

• It gets shorter

• It stays the same

• It disappears

What does redshift in the spectrum of an object indicate?

• It is moving away from the observer

• It is stationary

• It is moving toward the observer

• It is emitting gamma rays

What can spectroscopy determine about an object?

• Its chemical composition

• Its weight

• Its location in the Universe

• Its age

What is the main source of information about the Universe?

• The sound of astronomical objects

• The light objects give off

• The temperature of astronomical objects

• Pictures of astronomical objects

What allows us to examine the blueprints of astronomical objects?

• Telescopes

• Spectroscopy

• Radio waves

• Photography