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# Elastic behaviour of Springs and Mass on a spring

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Elastic Behaviour of Springs examines the principle of physics that shows the physical relationship between extension and force needed to extend and or compress a spring as stated by Hooke's law.... --- Ivan Ukiwah (ConnectTeachers-UK)

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### Elastic behaviour of Springs and Mass on a spring

1. 1. Hooke’s Law And The Elastic Behaviour of Springs.
2. 2. Mass On A Spring Learning Intention We are learning about how: i. i. To measure, record and describe the relationship between extension of an elastic object (i.e spring) and the force applied. To use data to plot a graph and calculate the spring constant k. Keywords and Phrases Starter Activity You have 4 minutes to draw a sketch of how you will set up the equipment to find how the stretch of a spring changes with mass Object Force Data Spring Extension Elastic Constant Relationship
3. 3. Helping you investigate! Before you start your practical work, think about: i. How you can make your test fair? ii. How you can make your test safe? iii. Can you predict what will happen? iv. Can you explain your prediction? v. How many observations or measurements will you make? vi. What range of values will give a suitable result? PowerPoint Presentation by: ScienceTutors and ConnectTeachers-UK
4. 4. Draw a sketch of how you will set up the equipment to find how the stretch of a spring changes with mass What is the independent variable? What is the dependent variable? PowerPoint Presentation by: ScienceTutors and ConnectTeachers-UK
5. 5. Explore i. Should you try out some tests to check your ideas before writing down your final plan? ii. How will you record your results clearly and accurately? PowerPoint Presentation by: ScienceTutors and ConnectTeachers-UK
6. 6. Research i. Hooke's Law ii. How to calculate Spring constant Due: Next lesson (Students to copy homework into their planners)
7. 7. Practical Activity Elastic Behaviour! Mass on a spring to be carried next lesson.
8. 8. Must be able to… Record results in a table Should be able to… Take accurate measurements of stretch Could be able to… Plot a graph of results
9. 9. Carry out the experiment, and record your results in a table Independent Variable Mass in g No more than 700g! Dependent Variable Stretch of spring in cm
10. 10. 1. How did you make your measurements accurate? 2. What is the relationship between stretch of the spring and mass? 3. How could you use this equipment to find the mass of your pencil case?
11. 11. What graph could you use to show your results? Can your result be shown on a bar chart or a line graph? What are the steps needed to draw a line graph? Plot a graph of your results. Can you see a pattern in your results? Does your result support your prediction?
12. 12. Calculating your gradient What is spring constant? Can you calculate spring constant from your graph? PowerPoint Presentation by: ScienceTutors and ConnectTeachers-UK
13. 13. Can you comment on any improvements you could make to: i. the way you did your test ii. the reliability of your result Can you suggest any further work to extend your investigation?
14. 14. Learning Journal 15/12/2013 1. 2. 3.
15. 15. Draw a line under last lesson’s work and write today’s title in your book... c/w 15/12/2013 How does stretch of a spring change with mass?
16. 16. ===END === PowerPoint Presentation by: ScienceTutors and ConnectTeachers-UK