CKLA Light and Sound

Front

How fast does light travel?

Back

186,000 miles per second

Front

What is Thomas Edison's most famous invention?

Back

the lightbulb

Front

Objects that DO NOT allow light to pass through them are _____________.

Back

Opaque

Front

Sound and light are both a form of ___________.

Back

energy

Front

A lens is a _________ object that light can pass through and that is used in many instruments, such as eye glasses.

Back

transparent

Front

What do we call materials that allow light to pass through easily?

Back

Transparent materials

Front

What is the term for materials that allow some light to pass through but not all?

Back

Translucent materials

Front

What is the speed of sound in air?

Back

Approximately 1,125 feet per second

Front

What is the main source of natural light on Earth?

Back

The Sun

Front

What is the term for the bending of light as it passes through different materials?

Back

Refraction