True or false about waves

Exercise and reference answers

Questions

1. Statement is true

   No

   Statement

   Mechanical waves can cross a vacuum.

2. Statement is true

   Yes

   Statement

   A wave on a string is transverse.

3. Statement is true

   Yes

   Statement

   Overlapping pulses add algebraically.

4. Statement is true

   No

   Statement

   Nodes swing with the largest amplitude.

5. Statement is true

   Yes

   Statement

   Node positions stay fixed in time.

6. Statement is true

   No

   Statement

   Electromagnetic waves need a medium.

Instructions

Decide whether each statement is true or false.

Explanation