• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3

# To Determine the Spring Constant of a Helical Spring and a Value for the Earth's Gravitational Field Strength

Extracts from this document...

Introduction

A2 COURSEWORK AIM: To Determine the Spring Constant of a Helical Spring and a Value for the Earth's Gravitational Field Strength OUTLINE: I will be using a coiled spring and using its elastic properties to determine a value for its spring constant and it's oscillating properties to calculate a value for the earth's gravitational field strength, to compare to the actual value for the earth's gravitations field strength. *SPRING CONSTANT* Hooke's Law states - "The Force a Spring Exerts on a Body is Directly Proportional to the Displacement of the System (The Extension of the spring)" i.e. Force Extension So... Force = K x Extension F = Ke So K = F/e * For this experiment I will have to use the same spring throughout because the spring constant values vary from spring to spring. ...read more.

Middle

so they don't have to be reweighed each time they are used. * The length of the spring will be measured without any weights on it to establish a point to which the extensions can be compared. (This value is to be recorded) * The first weight is then to be added, (10g) and the extension recorded. (The extension is the original reading taken from the new recorded length) * This procedure is to be repeated until 100g is the weight. * These weights are then replaced by a 100g weight, and the experiment will continue using 100g weight changes. * When a value of 800g is reached, the experiment is to be repeated in reverse (i.e. ...read more.

Conclusion

274 296 275 274.667 800 322 301 321 300 320 299 300.0 My graph will be Extension against Mass as below, but these results will only include my results from 100g upwards because the results below this value are insignificant values on my graph: Extension (m) (x10-3) 28.0 73.7 109.0 149.0 187.3 255.3 274.7 300.0 Mass (kg) (x10-3) 100 200 300 400 500 600 700 800 ANALYSIS OF RESULTS AND GRAPH: There don't appear to be any anomalous results from my graph. From my graph I can calculate the value for K, the spring constant from the formula: K = F/e From the formula F = mg, we can see that: K = mg/e The graph shows mass (m) against extension (e), so: K = mg/e = 740x10-3 x 9.81/285x10-3 =25.47 *EARTH'S GRAVITATIONAL FIELD STRENGTH* ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Waves & Cosmology section.

## Found what you're looking for?

• Start learning 29% faster today
• 150,000+ documents available
• Just £6.99 a month

Not the one? Search for your essay title...
• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

# Related AS and A Level Waves & Cosmology essays

1. ## Measuring spring constant using oscilations of a mass.

Background Theory And Source For Relevant Information The main aim of this experiment is to find the spring constant, k and see that is the effective mass, me small enough to be ignored. I would do this by measuring oscillations of different masses on the spring and then using the

2. ## Determine the value of 'g', where 'g' is the acceleration due to gravity.

Safety Below are some safety precautions for the experiment; * Do not exceed the elastic limit of the spring because it will break when deformed. * The hook holding the mass is connected properly to spring, because if the mass falls on someone's foot it may cause injuries.

1. ## Elastic constant of a spring.

This was investigated in the 17th century by Robert Hooke. He showed that when a spring is fixed at one end and force is applied to the other end, the extension of the spring is proportional to the applied force, provided the force is not large enough to stretch the spring permanently.

2. ## The aim of this investigation is to examine the effect on the spring constant ...

to the difficulty and potential inaccuarcy in determining the exact location each time of other points on the spring when they change due to the stretching of the spring. I have decided to take 10 readings during each experiment, each reading will be taken when a 0.1 kg weight is added to the bottom of the spring.

1. ## Physics - The aim of this practical investigation was to obtain a value for ...

�0.392 1013.0 1016 1008.0 1003.0 1000 1008.0 �8.0 Example Calculations Force Given by Force = mass * acceleration due to gravity (which we take to be 9.81ms-2) or F = mg So, for a mass of 0.6kg the Force would be, F = mg F = 0.6 * 9.81 =

2. ## Finding the Spring Constant (k) and Gravity (g) using Hooke&amp;amp;#146;s Law and the Laws ...

Mass (kg) Force (N) = mass x 9.81 Extension (m) Period (s) Graphs 13. Our first graph is to calculate a primary estimate for the spring constant of the spring. For this we will use the equation: F = k e If we plot force against extension and draw on

1. ## Calculating the value of &amp;quot;g&amp;quot; (Gravitational field strength) using a mass on a spring

Variable: Mass Constant: Amplitude Constant: Equipment used i.e. spring, weight hook Constant: Number of cycles Measurements taken of: Time, extension Diagram 1. Set up clamp stand to the correct height over the edge of a table 2. Place the 2 large weights on the flat part of the clamp stand, as shown in the diagram 3.

2. ## Waves and Cosmology - AQA GCE Physics Revision Notes

* For the optical spectrum, the wavelengths are moving towards the red end of the spectrum. The faster the motion, the greater the change in wavelengths towards the red end of the spectrum. Since the red shift applies to all waves in the spectrum, even the absorption lines in the spectrum will be shift to the red end.

• Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to