Are Small Ripples Sent Out Across the Surface of a Lake

question 37

Multiple Choice

Are small ripples sent out across the surface of a lake truly "waves", as that word is used in physics?

• A) Yes, because the water itself doesn't go anyplace but simply oscillates up and down.
• B) No, because the water's motion is "mass motion", similar to the motion of a ball that has been thrown.
• C) Yes, because the water itself moves across the lake, away from the source of the wave.
• D) No, because true water waves are longitudinal.
• E) No, because the water itself doesn't go anyplace but simply oscillates up and down in one place.