Question

1. Mechanical waves are similar to electromagnetic waves because they do not need a medium to propagate through.

True or False

2. Mechanical waves transport energy not matter.

True or False

3. A water wave becomes smaller when it reflects off a barrier.

True or False

4. Edwin Hubble deduced that distant galaxies were moving away from Earth based on observing spectral lines and noticing that the lines were Doppler shifted toward longer wavelengths.

True or False

5. When two waves pass through each other the resultant wave gets bigger.

True or False

6. When a crowd at a soccer match does ‘the wave’ they are demonstrating a longitudinal wave?

True or False

7. Two identical strings at different tensions will have the same wave velocity.

True or False

8. A high pitch sound wave travels faster than a low pitch sound wave.

True or False

9. The beat frequency heard between two sound sources is 3 Hz. One of the sources is fixed at 436 Hz. The frequency of the other source must be 433 Hz.

True or False

10. The intensity of sound originating from a point-source located 1-meter away is 25 times greater than its intensity located 5-meters away.

True or False

Answer 1