Year 9 Light and Sound initial Quiz

What causes sound to be produced?

• Movement of light

• Vibrations of particles

• Reflection of light

• Transmission of heat

In which medium does sound travel the fastest?

• Solids

• Liquids

• Gases

• Plasma

Sound cannot travel through...

• Solids

• Liquids

• Gases

• A Vacuum

What happens when the ear canal is blocked by wax?

• Sound waves travel faster

• Vibrations become stronger

• Sound waves are blocked

• Electrical impulses stop

What is necessary for sound to travel?

• Electromagnetic waves

• Particles in a medium

• A vacuum

• Direct sunlight

Which of the following best describes a sound wave?

• Transverse wave

• Light wave

• Electromagnetic wave

• Thermal wave

Which is a property of light waves?

• Amplitude

• Wavelength

• Conductivity

• Frequency of sound

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

• X-ray spectrum

• Ultraviolet spectrum

• Infrared spectrum

• Visible spectrum

What is one of the things that determines the color of light that we see?

• The medium it travels through

• The frequency of the light wave

• The amplitude of the light wave

• The duration of light exposure

Which color has the lowest frequency in the visible spectrum?

• Green

• Red

• Yellow

• Violet