The table shows the results of an experiment in which a long piece of plastic foam was stretched by hanging weights one end. LOAD/ N Length/ cm Extension/ cm 0 . 0 83 . 0 0 . 0 5 . 0 87 . 0 10 . 0 91 . 0 15 . 0 95 . 0 20 . 0 99 . 0 Copy the table and complete the third column to show the value the extension produced by each load.

Complete the third column to show the value the extension produced by each load LOAD/ N Length/ cm Extension/ cm 0 . 0 83 . 0 0 . 0 5 . 0 87 . 0 4 10 . 0 91 . 0 8 15 . 0 95 . 0 12 20 . 0 99 . 0 16

The table shows the results of an experiment in which a long piece of plastic foam was stretched by hanging weights one end. LOAD/ N Length/ cm Extension/ cm 0 . 0 83 . 0 0 . 0 5 . 0 87 . 0 10 . 0 91 . 0 15 . 0 95 . 0 20 . 0 99 . 0 Use your completed table to plot an extension-load graph.

LOAD/ N Length/ cm Extension/ cm 0 . 0 83 . 0 0 . 0 5 . 0 87 . 0 4 10 . 0 91 . 0 8 15 . 0 95 . 0 12 20 . 0 99 . 0 16 Extension-Load graph Here is a sample lab set-up to carry out an experiment on the stretching of a spring. The spring is hung from a rigid clamp and its top end is fixed. A weight or load is attached to the open end of the spring. The spring is suspended as shown in the diagram beside.

EASY

Upper Secondary: IGCSE

IMPORTANT

Earn 100

When a spring is stretched, its length increases from $58.0 c m$ to $66.0 c m$ Calculate its extension.

Important Questions on Forces and Matter

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 5 - Forces and Matter>End-of-chapter questions>Q 7

A student has a short spring. He is required to investigate how the length of the spring changes as the load stretching it increases. Describe the experimental procedure he should follow, stating the equipment he should use and the measurements he should make.

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 5 - Forces and Matter>End-of-chapter questions>Q 8

The table shows the results of an experiment in which a long piece of plastic foam was stretched by hanging weights one end.

LOAD/ N	Length/ cm	Extension/ cm
$0.0$	$83.0$	$0.0$
$5.0$	$87.0$
$10.0$	$91.0$
$15.0$	$95.0$
$20.0$	$99.0$

Copy the table and complete the third column to show the value the extension produced by each load.

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 5 - Forces and Matter>End-of-chapter questions>Q 8

The table shows the results of an experiment in which a long piece of plastic foam was stretched by hanging weights one end.

LOAD/ N	Length/ cm	Extension/ cm
$0.0$	$83.0$	$0.0$
$5.0$	$87.0$
$10.0$	$91.0$
$15.0$	$95.0$
$20.0$	$99.0$

Use your completed table to plot an extension-load graph.

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 5 - Forces and Matter>End-of-chapter questions>Q 9

Draw a labelled diagram to show a simple mercury barometer.

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 5 - Forces and Matter>End-of-chapter questions>Q 9

Describe how such a barometer shows changes in atmospheric pressure.

EASY

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 5 - Forces and Matter>End-of-chapter questions>Q 10

Your friend has fallen through the thin ice on a frozen pond. You come to the rescue by laying a ladder across the ice and crawling along the ladder to reach your friend. Use the idea of pressure to explain why it is safer to use the ladder than to walk on the ice.

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 5 - Forces and Matter>End-of-chapter questions>Q 11

An unstretched spring is

12.0 cm

long. A load of

5.0 N

stretches it to

15.0 cm

. How long will it be under a load of

15 N ? (

Assume that the spring obeys Hooke's law

)

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Physics Coursebook Second Edition>Chapter 5 - Forces and Matter>End-of-chapter questions>Q 12

A group of students carried out an experiment in which they stretched a length of wire by hanging weights on the end. For each value of the load, they measured the length of the wire. The table shows their results.

$\frac{Load}{N}$	$0$	$10.0$	$20.0$	$30.0$	$40.0$	$50.0$	$60.0$	$70.0$
$\frac{Length}{m}$	$3.200$	$3.207$	$3.215$	$3.222$	$3.230$	$3.242$	$3.255$	$3.270$

Copy the table and add a row showing the extension for each load.

When a spring is stretched, its length increases from 58.0 cm to 66.0 cm Calculate its extension.

Important Questions on Forces and Matter

Learn and Prepare for any exam you want !

When a spring is stretched, its length increases from $58.0 c m$ to $66.0 c m$ Calculate its extension.