1. True
2. False
3. True
4. True
5. True
6. The particle vibrates back and forth about position A. It does not move to Kate; it simply wiggles back and forth about point A.
7. Tosh must move his hand back and forth parallel to the direction of wave motion — rightward and leftward — to produce a longitudinal wave.
8. Compressions: A, C, E, G, I, K
Rarefactions: B, D, F, H, J, L
9. Sound waves are mechanical waves that require a medium to travel. In space, which is a vacuum with no matter, sound cannot propagate. Only electromagnetic waves (like light or radio) can travel through a vacuum. Therefore, the film’s depiction of hearing spaceship sounds in space is scientifically inaccurate.
Parent Tip: Review the logic above to help your child master the concept of physics sound worksheet.
