Mechanical wave

What is a necessary condition for the propagation of mechanical waves?

• Low pressure

• A physical medium

• A vacuum

• High temperature

Which of the following is NOT an example of a mechanical wave?

• Wave on water

• Light wave

• Sound wave

• Vibration of a guitar string

Which type of wave is carried by vibrations in a slinky?

• Transverse wave

• Compression wave

• Electromagnetic wave

• Radio wave

What is a common characteristic of all mechanical waves?

• They can travel through a vacuum

• They are always audible

• They require a medium to travel

• They are visible to the human eye

Why can't mechanical waves travel through a vacuum?

• They are absorbed by the vacuum

• They require light to propagate

• They are too weak

• They need a medium to carry vibrations