Calculation with waves Flashcards
1
Q
What is the “period” of a wave?
A
- Time taken for 1 complete wave to pass a fixed point, measured in seconds.
2
Q
What is the “frequency” of a wave?
A
- Number of waves passing a fixed point per second, measured in Hertz (Hz)
3
Q
What is the equation that links period and frequency?
A
T= 1/f Period = 1/ frequency
4
Q
What is the equation for calculating speed of a wave?
A
V= f x λ Velocity = frequency x wavelength
5
Q
How do you measure the speed of sound in air using echos?
A
V = 2 x distance/ Time taken
6
Q
What is the speed of light?
A
3x10⁸ m/s
7
Q
What is the speed of sound in air?
A
330m/s