Light Quiz

What is the speed of light in a vacuum?

• 299,792,458 meters per second

• 1,000,000,000 meters per second

• 500,000,000 meters per second

• 100,000,000 meters per second

What is the primary source of light on Earth?

• Moon

• Stars

• Sun

• Fire

What is the scientific term for the bending of light as it passes through different mediums?

• refraction

• absorption

• diffraction

• reflection

What is the unit of measurement for the brightness of light?

• lumen

• kilogram

• meter

• celsius

What is the color of light that has the longest wavelength?

• blue

• green

• yellow

• red

What is the phenomenon where light is separated into its different colors?

• Dispersion

• Refraction

• Absorption

• Reflection

What is the name of the process by which light is absorbed and then re-emitted by atoms or molecules?

• Emission and absorption

• Absorption and re-emission

• Reflection and refraction

• Scattering and diffraction

What is the name of the device that separates light into its different wavelengths?

• Colorizer

• Spectroscope or Prism

• Light separator

• Wavelength splitter

What is the name of the law that states that the angle of incidence is equal to the angle of reflection?

• The law of absorption

• The law of diffraction

• The law of refraction

• The law of reflection