Sound Waves

What causes sound?

• Cells

• Vibrations

• Force

• Gravity

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What does the frequency of a sound wave affect?

• Where the sound is coming from.

• How loud or quiet the sound is.

• How high or low pitch it sounds.

Put these graphs in order from lowest frequency to highest frequency.

• Yellow, Blue, Green

• Blue, Yellow, Green

• Green, Yellow, Blue

• Blue, Green, Yellow

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Which of these waves would be loud and high pitch?

• Blue

• Green

• Yellow

• Red

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What do you call the high and low points of a sound wave?

• Positive and Negative

• Peaks and Valleys

• Cause and Effect

• Full and Empty

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What is a sound wave?

• A sound wave is a type of wave that is created by light energy.

• A sound wave is a type of wave that is created by magnetic fields.

• A sound wave is a type of wave that is created by vibrating objects and travels through a medium such as air or water.

• A sound wave is a type of wave that is created by gravitational force.

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What are the three properties of sound waves?

• frequency, amplitude, and wavelength

• pitch, volume, and speed

• intensity, duration, and velocity

• tone, loudness, and distance

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What is the speed of sound in air at room temperature?

• 700 meters per second

• 343 meters per second

• 500 meters per second

• 100 meters per second

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What is the formula to calculate the speed of sound in a medium?

• v = E + ρ

• v = E * ρ

• v = sqrt(E/ρ)

• v = E/ρ

What is reflection of sound?

• The reflection of sound is the phenomenon where sound waves bounce off a surface and change direction.

• The reflection of sound is the phenomenon where sound waves pass through a surface and change direction.

• The reflection of sound is the phenomenon where sound waves disappear after hitting a surface.

• The reflection of sound is the phenomenon where sound waves travel faster after bouncing off a surface.

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