Crash Course Astronomy Quiz

What is light at its most basic form?

• A form of matter

• A form of heat

• A form of energy

• A form of sound

What is the distance between the crests of a wave called?

• Velocity

• Amplitude

• Frequency

• Wavelength

Which color of light has the shortest wavelength?

• Red

• Violet

• Green

• Blue

What do we call light with a wavelength slightly shorter than visible light?

• Ultraviolet light

• Microwaves

• Infrared light

• Radio waves

What is the term for the spread of colors in light?

• Rainbow

• Prism

• Spectrum

• Wave

What happens to the energy of light as its wavelength gets shorter?

• It increases

• It decreases

• It stays the same

• It disappears

What is the term for light with the longest wavelength?

• Radio waves

• Microwaves

• X-rays

• Gamma rays

What is the main component of stars and gas clouds in space?

• Carbon

• Nitrogen

• Hydrogen

• Oxygen

What device is used to measure the wavelength of light?

• Telescope

• Microscope

• Spectrometer

• Thermometer

What effect describes the change in wavelength when an object moves toward or away from us?

• Compton effect

• Doppler effect

• Photoelectric effect

• Zeeman effect