Worksheet 1 General Properties of Waves

Example 3

(a) Speed = 1/1.69 x 30
                = 17.8 (to 3 s.f.)

(b) Yes, it is possible to change the speed of the wave pulse (of the same width). The tension of the wave affects the speed of the wave pulse. Consequently, when the tension of the wave is decreased, the speed of the wave will decrease.

High tension

Low tension

Speed = 1/10.99 x 30
           = 2.73 (to 3 s.f.)