How does sound travel? – What happens next?

The video explains how sound travels through vibrating air particles. It demonstrates this by placing a clock in a capsule and removing the air to create a vacuum. Without air particles, sound cannot travel, and the alarm becomes inaudible. This illustrates the necessity of a medium for sound transmission.

How does sound typically travel from one place to another?

• Through light waves

• Through vibrating particles in the air

• Through solid objects only

• Through water currents

What is the purpose of placing the clock inside a capsule?

• To amplify the sound

• To protect it from damage

• To create a vacuum by removing air

• To make it waterproof

What happens to sound when air is removed from the capsule?

• It cannot be heard

• It travels faster

• It becomes louder

• It changes frequency

Why can't we hear the alarm in a vacuum?

• The alarm stops working

• The alarm is too quiet

• The vacuum absorbs the sound

• Sound needs air particles to travel

What is the main effect of creating a vacuum around the clock?

• Sound cannot travel

• The clock stops ticking

• The clock speeds up

• The clock becomes invisible