Question

that people can hear. Sound is produced when an object
up, it's called a
and when the particles spread apart, it's called a
The
Without a medium,
such as outer space.
1. Fill in the blanks to complete the passage.
Sound is a form of
back and forth. When an object vibrates, it pushes the air around it, which






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causes the air to alternately bunch up and then spread apart. When the air particles bunch
These compressions and rarefactions travel outwards forming a sound
material that the sound wave moves through is called a
sound cannot travel, and so there is no sound in a​

Answer 1

Answer:

Sound is produced when an object vibrates, creating a pressure wave.

When air particles bunch up, it's called a compression. When the particles spread apart its called a rarefaction.

If it can travel without a medium (such as in space), it is called an electromagnetic wave.