Light and sound

Arjun and Oriol

What is lightLight is a form of

energy that we can

perceive with our sense of sight.

Ferb what is light ?

Candace didn’t know but Light goes

approximately 300.000km

per second, it is very fast.

Light is very fast.

Light travels

Light classify

opaque transparent

translucent

Flat mirror

Convex mirror

Concave mirror

Refraction

When we look at an object in a

glass of water, the image we perceive seems

to change. Because light

passes from one substance to another at different speeds.

Lenses

Yes. But do you know that the lenses of the glasses can make

objects look bigger or smaller?

Do you like my

glasses?

sound

What is sound?

Sound is a form of

energy that we can

perceive with the

ears.

Candace didn’t now but Soundgoes approximately 6000km per second through iron, it is very fast.

sound is very fast

too.

Types of sound

Intensity

The intensity of a sound can be strong or weak. Is measured with decibels

Types of soundsPitch

The pitch of a sound can be high or low. Pitch is the quality of sound that

depends on the frequency of vibrations.

Types of sound

Timbre

The timbre of a sound allow us to identify

what or who is producing the sound.

Noise

If a noise is unhealthy, it is

called noise pollution

Your welcome

Thanks Laura

Thanks Lily