David Sang Solutions for Chapter: Making Measurements, Exercise 4: Questions

Author:David Sang

David Sang Physics Solutions for Exercise - David Sang Solutions for Chapter: Making Measurements, Exercise 4: Questions

Attempt the free practice questions on Chapter 1: Making Measurements, Exercise 4: Questions with hints and solutions to strengthen your understanding. Cambridge IGCSE® Physics Coursebook Second Edition solutions are prepared by Experienced Embibe Experts.

Questions from David Sang Solutions for Chapter: Making Measurements, Exercise 4: Questions with Hints & Solutions

EASY
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 1 - Making Measurements>Questions>Q 1.8

Many television sets show 25 images, called 'frames', each second. What is the time interval between one frame and the next? 

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 1 - Making Measurements>Questions>Q 1.9

A pendulum is timed, first for 20 swings and then for 50 swings.

time for 20 swings=17.4 s

time for 50 swings=43.2 s

Calculate the average time per swings in each case, The answers are slightly different. Suggest some possible experimental reason for this.