• 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

# Investigation into whether the height of a ramp affects the speed of a trolley travelling down it.

Extracts from this document...

Introduction

Alex Boultwood 11a                                                                Dr. North

Investigation into whether the height of a ramp affects the speed of a trolley travelling down it.

Aim:

In this investigation I will place a trolley at the top of a ramp and then release it. Then I shall try to calculate its speed and from these results I can obtain whether the height of the ramp increases or decreases the speed of the trolley.

When the trolley is raised to the top of the ramp, it gains a certain amount of gravitational potential energy as the trolley is released; this energy is converted into kinetic (movement) energy as the trolley moves down the slope. To see what factors may affect the experiment, it may be useful to look at the formula for potential energy.

P.E = mhg (where m=mass, h=height and g=gravity)

The more potential energy the trolley has got, the faster it will move down the ramp. Therefore the only factors that can affect this experiment are the height of the ramp and the mass of the trolley. The gravity will always stay constant at about 10m/s2.

Middle

Obtaining results.

To make this investigation successful, we must choose a sensible range, and amount, of readings to record in order to come up with accurate set of results. It would be pointless to experiment with heights ranging from 1cm-4cm because the speed difference would be minute. I have chosen a range of 40cm – 240cm. We are going to release the trolley three times for each height. To measure the speed of the trolley we are going to use ticker tape. Ticker tape can be used to measure speed and acceleration; the timer dots the tape every 1/50th of a second. Equipment

Apparatus

Trolley – To roll down the ramp.
Ramp – For the trolley to roll down.
Metre Stick – To measure out 2 metres on the ramp.
Tape – To mark the start line.
Ticker tape – To measure speed of trolley.
Books – For one side of the ramp to rest on, to increase the height of the ramp.

Using this equipment, we can easily obtain results with a high degree of accuracy. We can get the height of the ramp at the start line to an accurate degree by simply moving the pile of books forwards or backwards fractionally.

Conclusion

In conclusion to the investigation, I believe that the experiment went very well, I did not face any major difficulties in obtaining or recording my results. If I had more time I would record more results to make my results more accurate. Also I would use a light gate instead of ticker tape, as light gates are more accurate as the ticker tape can cause some friction. Taking 3 sets of results reduced the chance of anomalous results. On my graph there is a slight dip at the height of 200cm and then it increases again at 240cm. I believe that this is because 24 was too steep to measure and therefore gave certain inaccuracies in the results. I believe my results were accurate as they were all near enough the same. Perhaps if I did the investigation again I would also see if mass affects speed.

Conclusion

By conducting this investigation I have found out that height affects speed and height and speed have a positive correlation. As Height increases spped increases and as height decreases speed increases.

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. ## Investigation is to see how changing the height of a ramp affects the stopping ...

> Sometimes the toy car changed direction when it went of the ramp and thus completely lost its speed and thus the results weren't noted down, to improve this we could have had a ramp that was curved and thus would have caused less irritation in direction of the toy car.

2. ## What affects the acceleration of a trolley down a ramp?

Here we have proved that velocity is directly proportional to height, but not acceleration. An equation for acceleration is Acceleration = change in velocity / time taken. So acceleration is proportional to velocity, therefore the greater the velocity the greater the acceleration.

1. ## INVESTIGATING HOW STEEPNESS AFFECTS SPEED

2.4 1.25 1.22 1.18 1.16 1.28 1.21 11.9 23 85 2.4 1.03 1.13 1.00 1.00 97.0 1.07 18.2 30 85 2.4 90/0 9.30 91.0 1.00 9.70 0.94 19.4 Vertical length (of ramp- cm) 4 7 15 18 23 30 Speed (cm per second)s=distance/average 38 47 64 70 79.4 90.4 Conclusion

2. ## An investigation into factors that effect the braking distance of a trolley

The science of this was explained in the earlier part of the coursework. Graph: Analysis of Graph My graph proves that as the height increases the braking distance also increases and vice versa, this shows that my hypothesis was correct.

1. ## An investigation into the acceleration of a trolley up a ramp.

* Place ticker tape to lower end of ramp. * Using the ruler, measure two metres for the trolley to travel. * Attach string( 2m in length) to trolley, and to pulley. * Place trolley at the base of the ramp and place 500g of weights on trolley.

2. ## Investigation into factors affecting the speed of a car rolling down a ramp

= Distance Travelled (m) ? Time taken (s) Using these equations I have now been able to draw up a modified set of results: Height of ramp (cm) Number of dots Time taken (s) Distance travelled (m) Avg. Speed (m/s)

1. ## Practical Investigation Into Viscosity

on the decent of a ball bearing. Using the same method as the experiment for surface area, the ball bearing took longer to descend through the liquid. Temperature On the third experiment I varied the temperature of the oil. The difference was at a higher temperature the ball bearing descended faster through the liquid.

2. ## Investigating the Factors Which Affect the Motion of a Trolley Down an Inclined Plane

Another example of a vector is weight. The weight of an object always acts in a downward direction. Average speed is obtained from the total distance moved and the total time taken: Average Speed = total distance traveled Total time taken When a moving object increases its speed, we say it accelerates.

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