Echo 1

What is an echo?

• It is a sound

• It is a reflection of a sound

• It is an oscillation

• Frequency maybe?

Where is the perfect spot for echo to get produced

• A room filled with furniture

• An empty and big room

• The Dining hall

• Kitchen

How do you stop an echoing sound ?

• Clap your hands

• Cover your ears

• Put in furniture

• Just live with it

Why can't we hear echo in a small room?

• Because the room is too small

• Because the sound is too loud

• Because of too much of stuff in the room

• Because an echo needs space to get produced

Why does sound travel faster in solids than in liquids or gases.

• They are harder.

• The particles are closer together.

• Solids have more energy.

• Gases fill their container.

Which state of matter do sounds travel fastest in?

• Solid

• Liquid

• Gas

• Plasma

Roughly what is the speed of sound in glass?

• About 50 m/s

• About 1 500 m/s

• About 4 500 m/s

• About 1800 m/s

Why does sound travel faster in solids than in liquids or gases.

• They are harder.

• Solids are more dense.

• Solids have more energy.

• Gases fill their container.

What is produce by vibration?

• Sound

• Light

• Rhythm

• Vibration

On which medium sound travels the slowest because the particles are spread out?

• Solid

• Liquid

• Gas