Unit 5 Test - Light

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 1. The coating in a(n) ___________________________ light bulb emits light when it interacts with ultraviolet light.

• FLUORESCENT

• INCANDESCENT

• LED

• LASER

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.”

• RADIATION

• REFLECTION

• ABSORPTION

• REFRACTION

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

• ELECTROMAGNETIC SPECTRUM

• VISIBLE LIGHT RANGE

• RADIO WAVE SCALE

• INFRARED CHART

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

• MICROSCOPE

• TELESCOPE

• BINOCULARS

• MAGNIFYING GLASS

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

• LASER

• BULB

• LED

• FLASHLIGHT

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 __________________.

• REFRACTION

• REFLECTION

• DIFFRACTION

• ABSORPTION

____________________ refers to the distance between two consecutive waves.

• Wavelength

• Frequency

• Amplitude

• Velocity

The bouncing of light off a surface is called _____________________.

• Reflection

• Refraction

• Diffusion

• Absorption

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

• Transparent

• Opaque

• Translucent

• Reflective

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

• Satellite

• Router

• Modem

• Switch