# Experiment to prove hookes law

Materials 1 and 2, whose displacement is shown in the results as y1 and y2, respectively, are in their elastic region. • Episode Newton’s second law of motion
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It is therefore useful to approach the experimental demonstration of the law as an exercise in data gathering and analysis. Using a simple set of apparatus should allow students to work individually or in pairs and critically consider the limits of the experiment as well as re-familiarizing themselves with the second law.

Revision of kinematics 10 minutes Student investigation: Relationship between acceleration and force 30 minutes Discussion: Looking at the results 10 minutes Student questions: Relationship between acceleration and force In this experiment, a trolley is accelerated by weights which are hanging on the end of a string which passes over a pulley.

It is important to note that the mass which is being accelerated includes the mass of the weights on the end of the string. After the preliminary discussion the students should be able to tackle this without too many difficulties.

The questions at the end of the section are best attempted after the apparatus is cleared away and the students have drawn the graphs. You can use their responses as a basis for a plenary session in which further discussion of sources of error timing — more difficult for shorter time intervals, non-uniform acceleration etc.

Do they find that acceleration is proportional to force, and inversely proportional to mass? You may wish to point out that the experiment can only show proportionality. This defines the Newton: You may wish to reserve some of the questions for later use.Hooke's Law says that the stretch of a spring is directly proportional to the applied force. (Engineers say "Stress is proportional to strain".) In symbols, F = kx, where F is the force, x is the stretch, and k is a constant of proportionality.

In this experiment we will consider two objects.

 Product Details However, this relationship is only linear to a specific point, which is known as the elastic region. Each material has a different elastic point which, after this, the material will begin to react differently to the force applied. Hooke’s Law | miskinytekotryna Although some of the results between 6 Newtons and 8 Newtons were slightly higher than expected this could be due to an experimental or human error the trend line shows that if the error had not occurred the results would follow the expected pattern. We can see that the elastic limit of both materials have not been met and when the force is taken away the materials will return to their original shape, like in the example of the bungee jumper. Found what you're looking for? However, although the starting deformation at 1 Newtons of applied force is lower for Material B, the object extends at a more rapid rate than Material A. This means that once the maximum 9 Newtons of force has been applied to both Materials, Material B will have a larger extension in length than Material A. Computer Applications Assignment 1 This is a quote I like very much: Similar Questions Be sure to keep your feet out of the area in which the masses will fall if the spring or rubber band breaks!

The ﬁrst will Notice that you can prove this equation if you insert m One may apply Newton’s 2 nd Law to both the submerged body and the spring scale (here assumed to be the scale’s hook).

The ﬁgure depicts both free body diagrams. Now for this law to be useful you need an explicit expression for the interaction, eg Hookes law of Newtons law of gravitation which gives the force F explicitly, then you use Newton’s second law .

This experiment is designed to prove Hooke's Law that all springs have a spring constant using Hooke's Law's formula F=kx. Objective: y To investigate how a spring behaves if it is stretched under the influence of an weight.

## Hooke’s Law Experiment – Results and Analysis – Dan Best – Academic Blog

this relationship can be expressed as F = kx where k is the spring constant or rather the proportionally constant and x.

behavior follows Hooke's law to within the limits of accuracy of the experiment. A formal lab report should include a title page like this one, with all of the appropriate information -- a descriptive title, your name, the course title, the date, and an abstract.

Part II - Simple Harmonic Motion In this part of the experiment you will verify if the period depends on the amplitude; calculate the resonance frequency and spring constant of a system. You will record the collected data in the Lab 8 Worksheet.

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