Waves, mixed check

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Wave speed equals wavelength times frequency.

2. Statement is true

   Yes

   Statement

   Frequency is the reciprocal of the period.

3. Statement is true

   No

   Statement

   A longitudinal wave has crests and troughs across its path.

4. Statement is true

   Yes

   Statement

   Mechanical waves need a material medium.

Instructions

Tap True or False for each statement.

Explanation