• 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
6. 6
6
7. 7
7
8. 8
8
9. 9
9
10. 10
10
11. 11
11

# To investigate how changing the height of a ramp affects the average speed of a trolley.

Extracts from this document...

Introduction

Aim:

## Prediction:

I predict that if you increase the height of the ramp the speed of the trolley will increase as well.

Reason:

My reason for the experiment is that of the theory:

Potential energy lost = Kinetic Energy gained

So when an object rolls down an incline; the object is becoming lower to the ground, therefore the potential energy decreases and transfers into kinetic energy, until it gets to the ground where a complete energy transfer has taken place into kinetic energy.

These Diagrams will help:

This shows a trolley going down ramps with two different heights. There is an energy transfer happening. At the top of the ramp in both diagrams the transference of potential energy into kinetic energy has not taken place. However when the trolley starts to roll down the incline the transference begins, when it is half way down the ramp the energy is shared equally. From then on the kinetic energy is gaining more and more over the potential therefore becoming faster and faster, and then the trolley reaches the end of the incline, now a complete energy transference has taken place.

Middle

We are going to keep the clamp stands the same because some of the clamp stands have different grips, so some might slack and loose it s height position a bit. Again this might result in inaccurate results.

Results:

 Height(CM)(+ - 0.5cm) First Set Of ResultsMeasuring Speed in m/s Second Set Of ResultsMeasuring Speed in m/s Third Set Of ResultsMeasuring Speed in m/s Average Set Of ResultsMeasuring Speed in m/s 60 2.8 2.8 2.8 2.8 55 2.68 2.67 2.66 2.67 50 2.52 2.54 2.54 2.53 45 2.41 2.41 2.41 2.41 40 2.27 2.26 2.25 2.26 35 2.11 2.11 2.11 2.11 30 1.92 1.94 1.94 1.93 25 1.69 1.71 1.7 1.7 20 1.51 1.53 1.53 , 1.5 1.52 15 1.26 1.26 1.26 1.26
 20 1.51 1.53 1.53 , 1.5 1.52

The 1.5 is a anomaly, because compared to the other results for this height its too big.

Conclusion:

I found out that the higher the ramp the higher the speed of the trolley. This agreed with my prediction that was based on the theory:

Potential energy lost = Kinetic Energy gained

When an object rolls down an incline; the object is becoming lower to the ground, therefore the potential energy decreases and transfers into kinetic energy, until it gets to the ground where a complete energy transfer has taken place into kinetic energy. In other words the lower it gets the faster it goes.

This diagram above shows a trolley going down ramps with two different heights. There is an energy transfer happening.

Conclusion

The experiment is reproducible, you can see it is by looking at these results for 60cm and 35cm.

 Height(CM)(+ - 0.5cm) First SetMeasuring Speed in m/s Second SetMeasuring Speed in m/s Third SetMeasuring Speed in m/s AverageMeasuring Speed in m/s
 60 2.8 2.8 2.8 2.8
 35 2.11 2.11 2.11 2.11

Also we got a good set of results which gave a good conclusion. Using a height and calculating the result and comparing it to the same height on my graph can prove this:

Calculation for 15cm

h = 15.0cm

g = 10 m/s2

V = (2gh)

V = (2x10x0.15)

V = 1.73 m/s

1.26 m/s

As you can see the readings are not exact but they are similar, the reason why they are not the sane is because the calculator does not account for friction or other wasted energy.

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

1. ## To investigate how a height of a ramp affects the speed of a trolley ...

by using books as a height for the ramp, then I decided to use 5 different height; 7cm, 9cm, 11cm, 15 cm, and 17 cm. I then repeated the experiment three times to make sure my results are accurate and reliable.

2. ## Investigate how the height of a ramp effects the speed of a bearing ball ...

Evaluation I think my measurements were pretty accurate. I can surely rely on the results. However there were some numbers of anomalies.

1. ## Choosing a light source

Light intensity (Lux) Light resistance (ohms) 0 4720 0.4 5 360 0.7 10 120 1.1 15 50 1.7 20 30 2.4 25 10 3 30 10 3.8 Graph for white 6.5 watts Results for green 12 watts Distance (cm) Light intensity (Lux)

2. ## Carbon track experiment

I decided to test the materials three times on the same carbon track and find the average results. Here is a table to illustrate my results. The length of the carbon track was kept constant at 6cm as too the width was kept constant at 1cm Material Test 1 (?)

1. ## An investigation into a factor that affects the speed of a marble rolling down ...

I will repeat each measurement I take four times and take the average. To ensure the marble doesn't shatter I will take care to stop it before it rolls off the desk. To stop the whole experiment from toppling over I will take care to ensure the wood is held firmly in place in the centre.

2. ## See how changing the height that a ball is dropped affects: the height to ...

Then the ball will try and spring back to its original shape, converting the elastic energy into kinetic energy again. Energy is lost and the amount depends only on the elasticity of the ball itself. The harder it is to deform a ball, the more efficient it is at bouncing - that is, the elasticity is greater.

1. ## The aim of this experiment is to adjust the height of the ramp and ...

Prediction The experiment is based on the potential energy at the top of the ramp being converted into kinetic energy at the bottom. I predict that the higher the ramp the faster the car will travel down it. Increase in height of ramp=increase in velocity of trolley As explained below

2. ## Investigate how the height of a ramp affects the average speed of a trolley ...

Plan: When planning my experiment, I will need to take into consideration the following points: � Safety � Fair testing � Equipment � How many results I will take � What range of variables I will experiment with Safety: With this straightforward experiment there is not much that needs to be taken into consideration.

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