Sound and Light

Sounds are created by

• vibrating particles

• waves

• air

• electricity

When light bounces off an object this is known as a

• Refreaction

• Absorption

• Reflection

• Electromagnetic Spectrum

Which of the following objects is opaque

• wood

• glass

• frosted glass

• air

Which of the following objects is transparent

• Glass

• Brick

• Mirror

• Sand

Which part of the electromagnetic spectrum is visible to the human eye

• Infrared

• Gamma

• Ultraviolet

• Visible Light

The Compression part of a sound wave is when

• The particles are closer together

• The particles are spread apart

• The particles are moving faster

• The particles are moving slower

When light bends this is known as

• Refraction

• Reflection

• Incidents

• Impossible to bend light

How does sound travel?

• in only one direction
• in waves
• it doesn't travel

Pitch is __________________.

• how loud or soft a sound is
• how high or low a sound is
• when sound comes back to you

My vocal cords ___________ when air passes through them.  This allows me to speak.

• stop
• vibrate
• close
• open