Question

all waves that travel through a medium are called
a surface waves.
b light waves
c mechanical waves.
d longitudinal waves

Explanation:

To solve this, we analyze each option:

• Option a: Surface waves are a type of mechanical wave that travel along a surface, not all waves through a medium.
• Option b: Light waves are electromagnetic waves and can travel through a vacuum (no medium), so they aren't defined by traveling through a medium.
• Option c: Mechanical waves require a medium to travel (e.g., sound waves, water waves), so all waves that travel through a medium are mechanical waves.
• Option d: Longitudinal waves are a type of mechanical wave (particle motion parallel to wave direction), but not all medium - traveling waves are longitudinal (e.g., transverse waves like water waves on the surface also travel through a medium).

Answer:

c. mechanical waves