Unit 5 Science 4 Test

What causes a sound to be made when a guitar string is plucked?

• Electricity travels through the string

• The string vibrates

• Air passes through the string

• The string is heated

Which material is best at reducing sound?

• Cotton wool

• Plastic bag

• Aluminium foil

• Paper

What does sound need to travel through to reach our ears?

• A vacuum

• A medium like air

• Light

• Water only

Which statement best describes pitch?

• How loud or soft a sound is

• How high or low a sound is

• The speed of the sound

• The distance the sound travels

How can you make a drum sound quieter?

• Hit it harder

• Hit it with more force

• Hit it gently

• Use a bigger stick

What should you do to make a drum as loud as possible?

• Tap it softly

• Use a brush

• Hit it with force

• Cover it with cloth

If music at volume 4 is heard from 10 metres away, how far might volume 5 be heard?

• 11 metres

• 15 metres

• 18 metres

• 20 metres

How can a guitar player change the pitch of a note?

• Strum faster

• Use a louder amp

• Press different frets

• Tune it louder

What unit is used to measure sound levels?

• Degrees

• Grams

• Decibels

• Centimetres

Which tool is used to measure sound loudness?

• Thermometer

• Sound level meter

• Stopwatch

• Barometer