1.1 Introduction
1.1 Oscillations or Vibrations
1.1 Oscillations or Vibrations some important points
1.1 Wave Quantities
1.1 Wave Properties
1.1 Wave Types
1.1 Speed of Waves
1.1 Simple Harmonic Motion
1.1 Derivation of Period and Frequency for SHM
1.1 Energy in Simple Harmonic Motion
1.1 SHM & Simple Pendulum
1.1 Reflection and Transmission
1.1 Summary
Unit 1.1 Multiple Choice Questions - Waves
Unit 1.1 Multiple Choice Answers - Waves

Unit 1.1 introduction

Exercise 1.1.1

Try to answer the following questions without any discussion or research. Write down your answers in your notebook...

pendulum 10 deg1. A simple pendulum is released at an angle of 10.0°. The bob's mass is m and the thin string has negligible length and mass. It oscillates back and forth at a frequency f10. If the pendulum was started at a 5.0° angle instead, its frequency f5 would be:

(a) twice as great (2f5= f10).

(b) half as great (f5 = ½f10).

(c) the same, or very close to it (f5f5 ≈ f10).

(d) not quite twice as great (f5 < 2f10).

(e) a bit more than twice as great (f5 > 2f10).


2. What do you think will be the result of increasing the mass m in the above pendulum?


water waves3. Water waves at the beach

(a) carry water and energy toward the shore.

(b) make the water move up and down but the energy stays at that point.

(c) make the water move up and down and carry energy toward the shore.

Concept by Kishore Lal. Programmed by Kishore Lal... Copyright © 2015 Kishore Lal. All rights reserved.