Which of the following statements correctly describes a difference between mechanical waves and electromagnetic waves? A. Electromagnetic waves require a medium to travel through, whereas mechanical waves can travel through empty space. B. Mechanical waves transfer energy, whereas electromagnetic waves only transfer matter. C. Mechanical waves require a medium to travel through, whereas electromagnetic waves can travel through empty space. D. Electromagnetic waves transfer energy, whereas mechanical waves only transfer matter.
Question
Which of the following statements correctly describes a difference between mechanical waves and electromagnetic waves? A. Electromagnetic waves require a medium to travel through, whereas mechanical waves can travel through empty space. B. Mechanical waves transfer energy, whereas electromagnetic waves only transfer matter. C. Mechanical waves require a medium to travel through, whereas electromagnetic waves can travel through empty space. D. Electromagnetic waves transfer energy, whereas mechanical waves only transfer matter.
Solution
The correct statement is C. Mechanical waves require a medium to travel through, whereas electromagnetic waves can travel through empty space.
Mechanical waves, such as sound waves or ocean waves, require a medium (like air, water, or a solid material) to travel through. This is because they are disturbances that propagate through that medium.
On the other hand, electromagnetic waves, such as light waves or radio waves, do not require a medium. They can travel through empty space. This is because they are oscillations of electric and magnetic fields, which can propagate independently of a medium.
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