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

To investigate into how the height of a ramp affects the speed of a toy car rolled down it.

Extracts from this document...

Introduction

Physics Coursework

Toy car investigation

Aim:

        To investigate into how the height of a ramp affects the speed of a toy car rolled down it.

Background knowledge:

        Using my scientific knowledge, when the car is high up the ramp, it contains Gravitational Potential Energy(GPE), the higher it is, the more energy it has. When you let go the car, all the GPE will change to Kinetic energy, this energy will increase the speed of the car, the more it has, the faster it can go. In theory GPE=KE + friction force X distance. We will ignore the friction force and distance, because it has a constant friction and have the same distance. So that the formula will be:

GPE(mgh)=KE(1/2mvimage00.png)

Prediction

        I predict that the higher the ramp the faster it will go out the bottom of the ramp. Because the higher the ramp the more Gravitational Potential Energy(GPE), the more GPE the more kinetic energy converted and the car faster it will go. So that as the ramp increases, the velocity will also increase.

...read more.

Middle

Method

Apparatus:

A ramp

A 1m ruler

A toy car

A stopwatch

         First I need to measure the distance from the top of the ramp to the bottom to the ramp. I will measure the distance from the back of the wheel of the car and the mass of the car. I will set the height of the ramp to 50cm and decrease 5cm for each measurement; there will be total 10 readings. I will repeat each rolling experiment 3 times and find out the average time. The experiment will be like that:

Obtaining Evidence

Rolling distance= 1.22m

Car Mass= 123.7g

Gravity= 10m/simage00.png

Height of the ramp (cm)

...read more.

Conclusion

        I think I could start the height from the highest of the stand, then I could get more results and this can give me more evidence to support my prediction. And also I can try to use some electronic instrument to measure the time, this will make the measurement very accurate.

I think the results are not enough for each height, I think I should record more times for each height, and I think my the range is not too much, I think its better start from 1M than at 50cm, and decrease the height 5cm each time.

]

The ramp was not enough, if I use a longer ramp, the timing will be more accurate.

From the graph, we can see that the curve was not curved enough; this is because there are not enough points for me, so my conclusion is not firm. As I said above, I should have a larger range result, then I can plot more points to let me able to draw a better graph.

...read more.

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

See related essaysSee related essays

Related GCSE Forces and Motion essays

  1. Rolling a Car down a ramp.

    This is because gravity is pulling the Error! Not a valid link. straight down and friction is puling the car back up the ramp, opposite to direction of motion. The ramp is pushing the car straight up in the opposite direction of gravity.

  2. Investigate and measure the speed of a ball rolling down a ramp.

    (j) G.P.E K.E Friction Force (J) (J) (J) 0.188476 0.024051 0.164424357 0.376951 0.059093 0.317858083 0.565427 0.081219 0.484208072 0.753902 0.116683 0.637219622 0.942378 0.144309 0.798069265 1.130854 0.157662 0.973191371 Analyzing your Evidence & Drawing Conclusions Graph Number Graph 1 Angle of Ramp against Speed of Ball 2 G.P.E against K.E 3 Height of ramp against G.P.E 4 Speed of Ball squared

  1. How the height of a ramp affects the speed of a toy car.

    from skidding down a hill however the force may not be great enough to prevent this happening in my experiment, this may cause the car to skid slightly. When a car is placed at the top of the ramp, it gains a certain amount of potential energy - this is converted into kinetic (movement)

  2. Investigating the speed of a toy car travelling down a ramp

    Results: I think that a clear and concise way of recording my data would be to put the data I have obtained in a table in excel as this makes it easier when drawing graphs. The table format also allows me to identify anomalies easily.

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

    > The toy car won't be pushed it will just be released, if I do push the car it will gain more kinetic energy and thus the stopping distance will increase and the test won't be fair. > For each height it would be repeated three times to gain an

  2. Factors Affecting the Speed of a Car after Freewheeling down a Slope

    The trolley was placed at the top of the runway and released when the ticker timer was started. 4. The ticker timer was stopped when the trolley was stopped at the end of the flat ramp. 5. The tape was removed and measured from the start of the regular

  1. Investigating the relationship between the speed of a model car and its stopping distance.

    stopping distance, this is a common and expected trend throughout my results. I say expected because it is, as the speed of the car increases the more kinetic energy it has to be converted into heat and sound. This increase in energy makes the car go faster as it speeds down the ramp and onto the bench.

  2. Trolley Speed

    To find the height of the stair, we measured the stair with a metre stick. We took the ticker - timer tape of, from the back of the trolley and labelled it according to the height. After our first trial for that particular height we then did another two more trails.

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