WAVE
INTRODUCTION
A wave is move up of periodic motion. Periodic motion is motion repeated at regular interval. An Oscillation or a Vibration is known as one such complete motion - from one extreme position to the another extreme position and back -
We will use the terms oscillation and vibration to describe periodic motion.
Before we learn about Wave, we do some experiments of oscillation/vibration.
Experiment #1
Aim : Understanding Definition Period and Frequency of vibration
Activity
Students taking data of number of vibration with variety mass of load (3 different type of load)
From this experiments, students learn that :
- Period (T) is the time taken for one complete vibration
- Frequency (f) is the number of complete vibrations per seconds
- Mass doesnt affected to period and frequency of vibration
- The length of rope and Amplitude doesnt affected to period and frequency of vibration too