• 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
4. 4
4
5. 5
5

# Discover what factors effect the rate of a period on a pendulum.

Extracts from this document...

Introduction

Laura Hitchinson

Pendulum Coursework

Aim: To discover what factors effect the rate of a period on a pendulum.

Introduction: Pendulums were discovered by Galileo almost 500 years ago. He did an awful lot of research into pendulums. He also discovered that when pendulums are released they almost, but do not completely return to their release height. Pendulums if left swinging for a while start to turn clockwise if you are in the northern hemisphere of the earth but it is not actually the pendulum that is turning the earth is turning but the pendulum is still moving in the same direction as it always was. Most things to do with pendulums are based around gravity as if you put a pendulum on top of Mount Everest because it is so far off of the ground the gravity is not quite as strong so the pendulum will be swinging for longer.

Method:

1. First of all you have to set up your equipment as seen in the diagram below.
2. Then decide which variable you are going to do first. Length of string/Weight/Angle of release.

Middle

Weight

Time taken for one period of the pendulum (secs). 1

2

3

Average

200g

1.08

1.10

1.14

1.11

100g

1.13

1.07

1.13

1.11

50g

1.10

1.09

1.04

1.08

20g

1.06

1.13

1.09

1.09

## Experiment 2 – Angle of release.

 Angle of release from horizontal Time

Conclusion

On the third and final prediction my results proved my prediction right that the longer the pendulum the longer its period would be. This was shown as the time it took for the pendulum to complete one full period rapidly decreased as the length of the string decreased.

From my results I have worked out that nothing effects the period of a pendulum other than the length of the string as gravity works on it so that when you drop it from a higher release height gravity just pulls it towards the earth much faster and when you change the weight the force of gravity changes because of the change in the size of the pendulum so it would make no difference.

Evaluation: I think that overall my experiment was successful as I managed to complete and work out all my results and they actually showed me something and I now understand what forces effect the period of a pendulum. I think that I could of made many more attempts by varying weights/lengths of string/release heights much more and come up with more conclusive evidence.

This student written piece of work is one of many that can be found in our GCSE Forces and Motion 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 GCSE Forces and Motion essays

1. ## The effect of the temperature on the viscosity of the syrup.

It was noticed that the temperature didn't stay constant throughout each experiment. At 500, the time taken for the sphere to descend was only 1.5seconds and so the temperature wouldn't vary by a big value in this small period. However at 50, the time taken for the sphere descend was 550 seconds, which is a long period.

2. ## Investigation into the effect of temperature on viscosity

Temperature, (T), K Time1, (t), s Time2, (t), s Time3, (t), s Average Time, (t), s Viscosity, (?), Nsm-2 280 (7�C) 75.5 74.0 74.5 74.7 121.5 284 (11�C) 42.8 43.6 47.0 44.5 72.4 286 (13�C) 27.2 30.6 27.5 28.4 46.2 290 (17�C)

1. ## FACTORS AFECTING SIMPLE PENDULUM`S PERIOD

we know enough that why we need to draw error boxes in our graph. Conclusion about length: Graph: Now by the aid of a graph I can consider the relationship between length and square of period (because only the graph of squared period against length will give me a straight line)

2. ## Investigating how the length of a pendulum will effect its period.

needed for the pendulum to swing. Once the bob returns to its original point of suspension, the GPE has been totally converted into KE, causing the bob to continue moving past its pivot point and up to a height equidistant from its pivot as its starting point.

1. ## Investigating factors which affect the period time of a simple pendulum.

During the experiment, I observed that each oscillation for the same length of string seemed to be equal. This showed that the pendulum did not slow down as the number of oscillations increased. I took the safety measures described in my original plan.

2. ## What effects the period of a pendulum?

When the forces are not opposite the pendulum is pulled one way by one force and the other way by the other force. Because of air resistance the force created by the tension in the string slowly decreases and this means that the force of gravity is slowly becoming greater

1. ## Investigating pendulums.

Also would it make a difference if the bob were made of a different material? Or would it effect the pendulum if the bob were a heavier weight? Prediction I think that the length of the string will change the time it takes for one period because of the equation:

2. ## In this Coursework, we were given the task of investigating some factors which affect ...

2- The angle which will be 10 degrees. Dependant Variable: The dependant variable is the time it takes 10 periods to occur. In the experiment where I am varying the angle, the variables are as follows: Independent variable: I will be testing my experiment when the angle is at 10, 20, 30, 40, 50, 60, 70 & 80 degrees.

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