1) it is a wave characteristic affected by the loudness or intensity of sound?  a) wavelength b) amplitude c) pitch 2) what happens to the speed of sound as the temperature increases? a) increases b) constant c) decreases 3) As sound waves travel through air; they cause air to ______________. a) lose energy b) vibrates c) bend 4) What is the relationship between the temperature of the medium and the speed of the sound? a) the higher the temperature, the slower the sound travels b) the lower the temperature, the faster the sound travels c) the higher the temperature, the faster the sound travels. 5) Why the sound travels faster through warm material than cold material? a) gas particles are packed tightly b) warm particles are moving quickly c) warm particles move slowly

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