Question

a. exploring sound waves - fix the following settings on the interactive for this simulation. 1. set the animation to \show waves as sound.\ (top right - hand corner). 2. set the time for
eal time\ - top of animation. 3. set the frequency at .10 hz. 4. set the wave speed at 100 cm/s. 5. set the wave amplitude at 2 cm. b. question 10 - observe the motion of the 3 red points and describe their motion. d. question 11 - changing frequency - describe the motion of the particles in a higher frequency wave and a lower frequency wave. e. question 12 - a sound wave is a longitudinal wave. compare the direction of the particle movement with the movement of the wave.

Explanation:

1. For A, the instruction is to set animation settings on an interactive sound - waves simulation.
2. For B, observing and describing the motion of points involves understanding wave - related particle motion.
3. For D, comparing particle motion in different frequency waves is a common topic in wave physics.
4. For E, understanding the nature of sound waves as longitudinal and comparing particle direction is basic wave physics knowledge.

Answer:

1. Set the animation settings on the interactive sound - waves simulation as described.
2. Observe the motion of the 3 red points and describe how they move in relation to the wave.
3. Compare the motion of particles in a higher frequency wave and a lower frequency wave.
4. Recall that sound waves are longitudinal and compare the direction of particle movement with the wave movement.