Which statement correctly describes a property of sound waves?(1 point)
Sound waves are mechanical waves that require a medium to travel through.
Which property is unique to electromagnetic waves?(1 point)
Responses
They can be controlled by the pull of gravity.
They can be controlled by the pull of gravity.
They can travel on the surface of water.
They can travel on the surface of water.
They can shake structures on Earth.
They can shake structures on Earth.
They can travel in a vacuum.
Which statement correctly describes a property of sound waves?(1 point)
Responses
They can travel through outer space.
They can travel through outer space.
They have two kinds of movement.
They have two kinds of movement.
They require particles to transfer energy.
They require particles to transfer energy.
They are generated by movements in Earth’s crust.
They are generated by movements in Earth’s crust.
The correct statement describing a property of sound waves is: Sound waves are longitudinal waves that require a medium to travel through, such as air, water, or solids.
To find the correct statement that describes a property of sound waves, we need to understand what sound waves are and their characteristics.
Sound waves are longitudinal waves that travel through a medium, such as air, water, or solids. Here are some properties of sound waves:
1. Amplitude: The amplitude of a sound wave determines its volume or intensity. It corresponds to the loudness of the sound. Higher amplitude waves create louder sounds, while lower amplitude waves produce softer sounds.
2. Frequency: The frequency of a sound wave determines its pitch. It refers to the number of oscillations or cycles a wave completes in one second. Higher frequencies result in higher-pitched sounds, while lower frequencies produce lower-pitched sounds.
3. Wavelength: The wavelength of a sound wave is the distance between two corresponding points in the wave, such as two peaks or two troughs. It determines the distance between compressions or rarefactions in a sound wave.
4. Speed: The speed of sound waves depends on the medium through which they travel. In general, sound waves travel faster in solids, slower in liquids, and slowest in gases. The speed of sound in air at room temperature is approximately 343 meters per second.
Based on these properties, we can select the correct statement about sound waves.