Light

Question 1

Transparent

Answer 1

Particles in a transparent material let light pass through easily

Question 2

Translucent

Answer 2

Particles in a translucent material transmit light, but also reflects some, so a clear image cannot be seen through the material

Question 3

Opaque

Answer 3

Particles in an opaque material do not allow any light to pass through

Question 4

Incandescence

Answer 4

The process of emitting light because of the high temperatures.

Ex. An incandescent light bulb

Question 5

Fluorescence

Answer 5

The process of emitting light while recieving

Question 6

Electric discharge

Answer 6

The process of emitting light because of electricity passing through a gas.

Question 7

Phosphorescence

Answer 7

The process of emitting light for a short time after receiving energy from another source

Question 8

Electromagnetic

Answer 8

This spectrum includes radio waves, microwaves, and x-rays.

Question 9

Chemiluminescence

Answer 9

The process of changing chemical energy into light energy

Question 10

X-ray

Answer 10

This type of radiation is used regularly in hospitals to look for broken bones

Question 11

Umbra

Answer 11

The dark part of a shadow

Question 12

Shadow

Answer 12

An area where light is blocked by a solid object

Question 13

Ultra violet

Answer 13

This type of electromagnetic radiation can give you a sunburn, or can be used to disinfect surfaces

Question 14

Light

Answer 14

The form of energy that can be detected by the human eye

Question 15

Infrared

Answer 15

This type of electromagnetic radiation can be felt when you stand out in the sun and feel warm

Question 16

Bioluminescence

Answer 16

Occurs when living organisms produce light

Question 17

Transparency

Answer 17

The measure of how much light passes through a material

Question 18

Luminous

Answer 18

Describes objects which emit light energy

Question 19

Gamma

Answer 19

These Troyes of electromagnetic radiation is given off in nuclear explosions, and is used to treat cancerous tumours

Question 20

Penumbra

Answer 20

The lighter part of the shadow

Question 21

Nonluminous

Answer 21

Describes objects which do not emit light, but rather reflect light from other sources

Question 22

Visible spectrum

Answer 22

The colours of the rainbow are known as this

Question 23

Radio

Answer 23

These waves are the longest wavelength and lowest frequency waves in the electromagnetic spectrum

Question 24

Microwaves

Answer 24

These waves are used for cellular phones, wifi, and other forms of communications