Let's Talk About Light Quiz

What is the smallest unit of visible light?

• Proton

• Neutron

• Electron

• Photon

What is the term for objects through which light cannot pass?

• Transparent

• Translucent

• Opaque

• Reflective

In which medium does light travel at a speed of more than 0.1 million miles per second?

• Glass

• Air

• Water

• Vacuum

What is the term for the bending of light when it travels through different mediums?

• Reflection

• Refraction

• Dispersion

• Diffraction

How long does it take for light to reach the Moon from the Earth?

• 1 hour

• 1 day

• 1 week

• 8 minutes

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

• Reflection

• Refraction

• Dispersion

• Diffraction

What is the term for the bouncing back of light when it strikes a surface?

• Reflection

• Dispersion

• Refraction

• Diffraction

What is the term for the ablity of a material to allow light to pass through?

• Translucent

• Transparent

• Opaque

• Reflective