Question

1. ______ are evenly spaced waves with smoothly rounded crests and troughs.

○ standing waves
○ tsunamis
○ hurricanes
○ swells
○ capillary waves

question 7
2 pts

1. a wave has two different types of energy:

○ potential and mechanical.
○ kinetic and chemical.
○ potential and chemical.
○ kinetic and physical.
○ potential and kinetic.

Explanation:

Question 6

To solve this, we analyze each option:

• Standing waves: Do not have evenly spaced, smoothly rounded crests/troughs in the described way.
• Tsunamis: Are large, destructive waves, not evenly spaced with smooth crests/troughs.
• Hurricanes: Are weather systems, not waves in the ocean - wave sense.
• Swells: Are ocean waves that are evenly spaced with smoothly rounded crests and troughs, formed by distant winds.
• Capillary waves: Are small, rippled waves, not evenly spaced with smooth rounded crests/troughs like swells.

We recall the types of energy in a wave:

• A wave (like a water wave or electromagnetic wave) has potential energy (due to position, e.g., height of crest) and kinetic energy (due to motion of particles).
• Mechanical, chemical, and physical are not the two main energy types for a wave. So the correct pair is potential and kinetic.

Answer:

D. Swells

Question 7