What is Light?

What is the greatest source of light for our planet, Earth?

• The moon

• The stars

• The sun

• Light bulbs

What carries energy and has the shortest wavelengths?

• Yellow light

• Red light

• Green light

• Violet light

What is white light made up of?

• Only blue light

• Only red light

• Only yellow light

• All the colors of the rainbow

Which of the following is NOT a source of light?

• The sun

• The moon

• Light bulbs

• Flashlights

What is one reason why light is important?

• To make the wind blow

• To make the sky blue

• To make the Earth spin

• To make plants grow

What would be different in a world without light?

• It would be dark

• All of the above

• There would be no colors

• We would not be able to see anything

What is the correct order of the colors of visible light from longest to shortest wavelength?

• Violet, indigo, blue, green, yellow, orange, red

• Red, orange, yellow, green, blue, indigo, violet

• Violet, indigo, blue, green, yellow, orange, red

• Red, orange, yellow, green, blue, violet, indigo

What is the speed of light in a vacuum?

• 186,000 miles per second

• 10,000 miles per second

• 1,000 miles per second

• 100 miles per second

What is the main source of light in our classrooms?

• The sun

• The moon

• Flashlights

• Light bulbs

What happens when the electricity goes off and we do not have light from light bulbs?

• It becomes dark

• We can still see with the light from the stars

• We can still see with the light from the moon

• We can still see with the light from the sun