Diapositiva 1

LIGHT/SHADOW/SOUND/

LightWhere does light come from?

Our major light source:the SunTHIS IS A SOURCES OF LIGHT

SUNSTART

BULB

LAMP

TORCH

CANDLE

Where else does light come from?

Sorting light sources

Natural vs. Man-made (artificial)

Are these light sources?

moonwatermirrorThese items are not light sources, instead they are reflecting light from other sources.

SHADOWHow does light form shadows?A shadow is formed when a opaque object blocks the lightWhen there is no light, we cannot see anythings.If the light source is moved closer to the object, more light is blocked and a larger shadow is formed. lightsourcelightsource

SOUNDPLEASANT

UNPLEASANT

INFORMATION

WARNING

PLANE

DRUM

CAR

PHONE

BIRD

CLOCK

SAXOPHONE

RADIO

DOG

A LOUD

QUIETER