TED-Ed: What is color? - Colm Kelleher

The video tutorial explains the concept of waves using a cork on water as an example, introducing the idea of periodic motion. It then delves into the measurement of wave period and frequency, illustrating how these concepts apply to light. The tutorial explains that color is the frequency of light waves that our eyes detect, forming the visible spectrum. It concludes by discussing how objects reflect and absorb different colors of light, affecting their appearance.

What is the term used to describe the time it takes for a wave to complete one full cycle?

• Amplitude

• Frequency

• Period

• Wavelength

How is the frequency of light related to the concept of color?

• Color is the speed of light waves.

• Color is the frequency of light waves.

• Color is the wavelength of light waves.

• Color is the amplitude of light waves.

Which color of light has the highest frequency in the visible spectrum?

• Red

• Green

• Blue

• Purple

Why does a yellow pencil appear yellow under sunlight?

• It reflects yellow light and absorbs all other colors.

• It absorbs yellow light and reflects all other colors.

• It emits yellow light.

• It changes the frequency of light to yellow.

What happens to the light that is not reflected by an object?

• It is transmitted through the object.

• It is refracted.

• It is absorbed and turned into heat.

• It is scattered.