Year 8 Sound VCOP

What does Amplitude mean?

• The height of a wave from the middle, measures the energy of a wave

• The distance from the top of a wave to the bottom, measures the energy of a wave

• The length of one complete wave, measures the speed of the wave

• The number of waves per second, measures the speed of the wave

What is an echo?

• A local newspaper

• Sound made by a vibration

• Sound bouncing off an object

• Sound being absorbed by an object

What is energy?

• What the waves carries that allows it to do work on objects

• A type of light

• Made up of power

• What chases the behind the wave making it move

What is the frequency of a sound wave?

• Number of waves per second, higher frequency is a lower pitched sound

• Speed of the wave

• Number of waves per second, higher frequency is a higher pitched sound

• Loudness of the wave

How do you define a gas

• A fixed shape of particles

• Particles moving around and over each other

• Particles moving freely by themselves

• Particles with the electrons stripped from the nucleus

What do you measure in Hertz?

• Wavelength

• Amplitude

• Peaks

• Frequency

The pitch of sound a high frequency will make

• Low

• High

• Quiet

• Loud

How do you define a liquid

• A fixed shape of particles

• Particles moving around and over each other

• Particles moving freely by themselves

• Particles with the electrons stripped from the nucleus

A large amplitude will make a sound

• Be lower

• Be higher

• Be quieter

• Be louder

A low frequency will make a sound have be

• low pitch

• high pitch

• quiet

• loud