### Chapter 12 - Wave Motion - 4

 1. Match the column..........................wavelengtha) m/s b) secondc) N/md) meter
 2. Match the column..........................spring constanta) N/m-1 b) meterc) Nmd) second
 3. Match the column..........................radio wavesa) longitudinal waves b) mechanical wavesc) electromagnetic wavesd) transverse waves
 4. Match the column..........................waves need a medium for their production and propagationa) longitudinal waves b) elecromagnetic wavesc) mechanical wavesd) transverse waves
 5. Match the column..........................the waves produce on the surface of watera) longitudinal waves b) mechanical wavesc) transverse wavesd) electromagnetic waves
 6. Match the column..........................sound waves in aira) longitudianl waves b) mechanical wavesc) transverse wavesd) electromagnetic waves
 7. Match the column..........................up-down motion of a vetical rod in a watera) circular waves b) transverse wavesc) stationary wavesd) mechanical waves
 8. Sound, heat and light reach our ears in the form of ______.Click here to enter your answer!
 9. The motion of a corck about its mean positions is known as _______. Click here to enter your answer!
 10. A ______ water wave can be observed. Click here to enter your answer!
 11. Under in fluence of external force, the length of the spring _______.Click here to enter your answer!
 12. The motion of a mass attached to a spring is known as ________.Click here to enter your answer!
 13. In equilibrium, the pendulum is held ________ in a vertical position.Click here to enter your answer!
 14. The acceleration of the bob is directly propotional to the _______ from equilibrium position.Click here to enter your answer!
 15. The characteristics of the motion of the simple pendulum is like ________.Click here to enter your answer!
 16. The time required to complete one vibration is called ______.Click here to enter your answer!
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