• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar
  • Skip to footer
  • ICSE Solutions
    • ICSE Solutions for Class 10
    • ICSE Solutions for Class 9
    • ICSE Solutions for Class 8
    • ICSE Solutions for Class 7
    • ICSE Solutions for Class 6
  • Selina Solutions
  • ML Aggarwal Solutions
  • ISC & ICSE Papers
    • ICSE Previous Year Question Papers Class 10
    • ISC Previous Year Question Papers
    • ICSE Specimen Paper 2021-2022 Class 10 Solved
    • ICSE Specimen Papers 2020 for Class 9
    • ISC Specimen Papers 2020 for Class 12
    • ISC Specimen Papers 2020 for Class 11
    • ICSE Time Table 2020 Class 10
    • ISC Time Table 2020 Class 12
  • Maths
    • Merit Batch

A Plus Topper

Improve your Grades

  • CBSE Sample Papers
  • HSSLive
    • HSSLive Plus Two
    • HSSLive Plus One
    • Kerala SSLC
  • Exams
  • NCERT Solutions for Class 10 Maths
  • NIOS
  • Chemistry
  • Physics
  • ICSE Books

Understanding Elasticity

November 17, 2022 by Veerendra

Understanding Elasticity

Figure shows some objects around us that are elastic.
Understanding Elasticity


Elasticity
is a property of matter that enables an object to return to its original size and shape when the forces that are acting on it are removed. Figure shows the elastic property of an object.
Understanding Elasticity 1The elasticity of a solid is due to, the strong inter-molecular forces between the molecules of the solid as explained in Figure.
Understanding Elasticity 2

Experiment 1

Aim: To investigate the relationship between force and the extension of a spring.
Problem: Figure shows three babies of different weights lying in a cradle attached to a spring of the same type. What is the relationship between the force and the extension of a spring?

Understanding Elasticity 3
Hypothesis: The extension of a spring is directly proportional to the applied force.
Variables:
(a) Manipulated variable: Force
(b) Responding variable: Extension of the spring
(c) Fixed variable: Type of spring (The same spring is used throughout the experiment)
Operational Definition: The extension of a spring is defined as:
Extension, x = The length of the extended spring – The original length of the spring
Materials: Steel spring, slotted masses, holder of slotted masses, pin, plasticine.
Apparatus: Metre rule, retort stand with two clamps, G-clamp.

Method:
Understanding Elasticity 4

  1. The apparatus is set up as shown in Figure.
  2. The initial position of the pin is marked when no mass is attached to the spring.
  3. A slotted mass, m = 40 g is attached to the end of the spring and the new position of the spring is
  4. compared to its initial position. The extension of the spring, x is measured.
  5. Step 3 is repeated using slotted masses of mass, m = 60 g, 80 g, 100 g and 120 g.
  6. A graph of extension, x against force, F is plotted.

Results:
1. Tabulation of results.
Understanding Elasticity 5
2. Based on the results in Table, the graph of x against F is plotted.
Understanding Elasticity 6
Discussion:
1. The graph of x against F in Figure is a straight line with a positive gradient and passes through the origin.
2. This shows that the extension of a spring is directly proportional to the applied force. The hypothesis is accepted.
Conclusion:
The extension of a spring is directly proportional to the applied force.

Factors that Affect Elasticity

  1. Springs come in different sizes and stiffness according to their uses. A spring used in a ballpoint pen is smaller than and not as stiff as the one used in a motorcycle suspension system as shown in Figure.
    Understanding Elasticity 7
  2. The elasticity of springs can be studied by comparing the stiffness of each spring. A stiffer spring requires a bigger force to cause the same amount of extension. Hence, it has a bigger stiffness constant, k.
  3. Figure shows a comparison of two springs, P and Q.
    Understanding Elasticity 8
    (a) Both the springs have the same natural length. They are attached to loads of equal weight.
    (b) Spring Q is extended more than spring P. This means that with the same amount of force, spring Q is stretched more than spring P.
    (c) We can also say that to stretch both the springs, P and Q, to the same amount of extension, a larger force is needed for spring P.
    (d) We can conclude that spring P is stiffer and has a larger stiffness constant, k than spring Q.
  4. Figure shows the F-x graphs of the two springs, P and Q, plotted on the same axes.
    Understanding Elasticity 9
  5. By comparing the gradients of the two graphs, spring P has a larger stiffness constant, k than spring Q. Hence, spring P is stiffer than spring Q.

Aim: To study the factors that affect the elasticity of a spring.
Materials: A pair of steel springs with different lengths, a pair of steel springs with wires of different thickness, a pair of steel springs with different diameters of coils, a steel spring and a copper spring of the same size, five sets of springs of the same size, 10 sets of 100 g slotted masses with holders, 10 pins, plasticine.
Apparatus: Two metre rules, two retort stands-with clamps, two C-clamps
Method:
The apparatus is set up as shown in Figure for each spring in the pair.
Understanding Elasticity 10
The initial position of the pins are marked when no masses are attached to the pair of steel springs with different lengths.
An F-x graph is plotted for each spring for comparison.
Steps 2 and 3 are repeated for springs with wires of different thicknes, springs with different diameters of coils, springs of different materials and springs with different arrangements.
When a factor is being investigated, the other factors are kept constant.
Discussion:

Understanding Elasticity 11
Understanding Elasticity 12
Understanding Elasticity 13

Applications of Elasticity

  1. There is a wide range of applications of elasticity, from household usage to industrial use.
  2. Figure shows a coiled spring being used in the suspension system of a car. The application of elasticity in this case has made riding smoother and less bumpy.
    Applications of Elasticity 1
  3. Figure shows an example of the application of elasticity for a recreational purpose.
    Applications of Elasticity 2
  4. Figure shows an athlete aiming at a target with his bow and arrow. The elastic bow is an example of the application of elasticity in sports.
    Applications of Elasticity 3
  5. The double clip, in Figure, which is normally used in the office, is an example of the application of elasticity in the office.
    Applications of Elasticity 4
  6. Figure shows other applications of elasticity:
    Applications of Elasticity 5
  7. (a) Baby cradles use springs to rock babies to sleep.
    (b) Weighing machines and meters use springs to return the pointer to its original position.
    (c) Spring mattresses make sleeping more comfortable by supporting the weight of a person sleeping on it. The springs enable the mattress to return to its original size and shape when the person rises from the bed.

Filed Under: Physics Tagged With: Elasticity, Understanding Elasticity

Primary Sidebar

  • MCQ Questions
  • RS Aggarwal Solutions
  • RS Aggarwal Solutions Class 10
  • RS Aggarwal Solutions Class 9
  • RS Aggarwal Solutions Class 8
  • RS Aggarwal Solutions Class 7
  • RS Aggarwal Solutions Class 6
  • ICSE Solutions
  • Selina ICSE Solutions
  • Concise Mathematics Class 10 ICSE Solutions
  • Concise Physics Class 10 ICSE Solutions
  • Concise Chemistry Class 10 ICSE Solutions
  • Concise Biology Class 10 ICSE Solutions
  • Concise Mathematics Class 9 ICSE Solutions
  • Concise Physics Class 9 ICSE Solutions
  • Concise Chemistry Class 9 ICSE Solutions
  • Concise Biology Class 9 ICSE Solutions
  • ML Aggarwal Solutions
  • ML Aggarwal Class 10 Solutions
  • ML Aggarwal Class 9 Solutions
  • ML Aggarwal Class 8 Solutions
  • ML Aggarwal Class 7 Solutions
  • ML Aggarwal Class 6 Solutions
  • HSSLive Plus One
  • HSSLive Plus Two
  • Kerala SSLC

Recent Posts

  • Notice Writing Class 10 ICSE Format, Examples, Topics, Exercises, Samples
  • Tum, Yushmad Ke Shabd Roop In Sanskrit – युष्मद् (तुम) शब्द के रूप – भेद, चिह्न उदाहरण (संस्कृत व्याकरण)
  • Advantages and Disadvantages of Media | List of Top 10 Media Advantages and Disadvantages
  • Provisional Certificate | Meaning, How Can We Get Provisional Certificate?
  • Happiness Essay | Essay on Happiness for Students and Children in English
  • Bahuvrihi Samas – बहुव्रीहि समास – परिभाषा, उदाहरण, भेद, सूत्र, अर्थ
  • Speech On Knowledge Is Power | Knowledge is Power Speech for Students and Children in English  
  • Who Inspires You Essay | My Biggest Inspiration Essay, Person Who Inspired Me Essay 
  • Dog Essay | Essay on Dog for Students and Children in English
  • Paragraph On Work Is Worship 100, 150, 200, 250 to 300 Words for Kids, Students And Children
  • 10 Lines on National Flag of India for Students and Children in English

Footer

  • RS Aggarwal Solutions
  • RS Aggarwal Solutions Class 10
  • RS Aggarwal Solutions Class 9
  • RS Aggarwal Solutions Class 8
  • RS Aggarwal Solutions Class 7
  • RS Aggarwal Solutions Class 6
  • Picture Dictionary
  • English Speech
  • ICSE Solutions
  • Selina ICSE Solutions
  • ML Aggarwal Solutions
  • HSSLive Plus One
  • HSSLive Plus Two
  • Kerala SSLC
  • Distance Education
DisclaimerPrivacy Policy
Area Volume Calculator