U6 Lesson 2 Mastery Check - Light

Which of the following is NOT a source of light?

• A candle

• A flashlight

• The sun

• A mirror

What happens when light encounters a transparent material?

• It gets absorbed

• It reflects back

• It stops

• It passes through

Which phenomenon allows light to bend around corners?

• Reflection

• Refraction

• Diffraction

• Absorption

What are the primary colors of light?

• Red, Blue, Purple

• Yellow, Green, Blue

• Red, Green, Blue

• Red, Yellow, Blue

Which materials reflect the most light?

• Sand and stone

• Polished metal and glass

• Wood and paper

• Water and air

What is called a source of light?

• A) An object that can absorb light

• B) An object that can reflect light

• C) An object that can refract light

• D) An object that can emit light

Select all natural sources of light.

• fireflies

• computer

• sun

• fire

• stars

Which section of the spectrum is the ONLY one we can see?

• X-rays
• Visible Light
• Gamma Rays
• Ultraviolet Rays