Sound is energy

The video explores the concept of sound, describing it as a form of energy that travels in waves from its source. It explains how sound can be produced by various sources in different environments, such as cities and homes. The video also discusses the propagation of sound waves in all directions, allowing us to hear sounds from various positions. It highlights the difference between low energy sounds, like whispers, and high energy sounds, like rockets and thunder, which can travel much further. The video concludes with an example of thunder, emphasizing its powerful energy and the distance it can cover.

What is a sound source?

• Anything that absorbs sound

• Anything that reflects sound

• Anything that blocks sound

• Anything that makes a sound

How does sound energy travel from its source?

• In a straight line

• In a circular motion

• In waves in all directions

• In a zigzag pattern

Why can you hear a sound even if the source is behind you?

• Sound waves travel in all directions

• Sound waves only travel forward

• Sound waves are absorbed by the air

• Sound waves are blocked by obstacles

Which of the following is an example of a low energy sound?

• A rocket launch

• A whisper

• A thunder clap

• A car horn

What is the main reason a thunder clap can be heard from far away?

• It is a low energy sound

• It is a high energy sound

• It is louder than other sounds

• It travels faster than other sounds