Word Bank: Use each word once to complete the statements below RADIATION ELECTROMAGNETIC SPECTRUM FREQUENCY WAVELENGTH REFLECTION TRANSPARENT OPAQUE TRANSLUCENT ABSORPTION REFRACTION LED INCANDESCENT FLUORESCENT LASER OPTICAL FIBER SATELLITE MICROSCOPE TELESCOPE REFLECTING REFRACTING 2. __________________ is defined as the transfer of energy as electromagnetic or EM waves. It is “light in motion.”

The scale used to show the full range of wavelengths of EM waves is called the __________________ __________________.

An instrument used to see tiny, nearby images is called a __________________.

A __________________ is a device that produces intense light of a very small range of wavelengths. It basically produces “concentrated” light.

The bending, or changing in direction and speed of a wave, as it passes from one medium to another at an angle is known as __________________.

____________________ refers to the distance between two consecutive waves.

The bouncing of light off a surface is called _____________________.

When light is transmitted through an object clearly like water or clear glass, it is said to be ________________________.

A ______________________ is used to transmit data in the form of EM waves. Ex. GPS and weather systems.

____________________ is the number of waves per second, and is measured in hertz (Hz.)

______________________ materials do not let light pass through them.

____________________ is when light enters a material but does not leave it. Light energy is transferred to matter.

____________________ are used to see images of large, distant objects. They can be ______________________, using mirrors, or ______________________ using lenses.

An ____________________ is a tiny indicator light on many electronic devices. It contains solid materials that emit light when energized by an electric current.

________________________ light is created when electric current is passed through a thin wire called filament.

________________________ materials scatter light, not letting it pass straight through.

Often found in bundles, ____________________ ____________________(s) are thin, transparent glass threads that transmit light over long distances.

A Clear Window: Use a TP, TL, or O to describe its transparency.

A black T-shirt: Use a TP, TL, or O to describe its transparency.

Fog: Use a TP, TL, or O to describe its transparency.

Tissue paper: Use a TP, TL, or O to describe its transparency.

Use a TP, TL, or O to describe its transparency.

Brick wall: Use a TP, TL, or O to describe its transparency.

Briefly explain the difference between candescent, fluorescent and LED lighting.

What is the speed of light in a vacuum?

The sky is blue because:

The spoon appears bent or broken in the picture because of: