Light/Eyes

Front

What is the relationship between wavelength and frequency?

Back

A wave with a large wavelength will have a low frequency and low energy.

Front

What is the purpose of the pupil in the eye?

Back

The pupil lets light in.

Front

What does the intensity of light depend on?

Back

The intensity of light depends on the amplitude of the light waves.

Front

What does the term 'converging' mean in optics?

Back

Converging means to come together.

Front

What type of lens makes objects appear smaller and further away?

Back

A concave lens makes objects appear smaller and further away.

Front

What is light?

Back

Light is a form of energy that travels in waves.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another.

Front

What is the role of the cornea in the eye?

Back

The cornea helps to focus light onto the retina.

Front

What is the function of the retina?

Back

The retina converts light into electrical signals that are sent to the brain.