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

What affects the acceleration of a trolley?

Extracts from this document...

Introduction

Hannah Greenslade                                                                              Y11 Science Coursework

What affects the acceleration of a trolley?      

Plan

An unbalanced force causes an object to accelerate. The acceleration happens in the same direction as the resultant (or unbalanced) force. The size of this depends on the mass of the object and the size of the force.

The force on a small object is bigger than the same force acting on a bigger object.

If the mass stays the same but the force gets bigger, the acceleration also increases.

The equation to find acceleration is:   image04.pngimage05.png when image08.png= acceleration, image09.png= velocity at the end, image10.png= velocity at the start, and image11.png= time

The variables which could affect the acceleration of a trolley down a ramp are:

The mass of the trolley, - (the size of the trolley), if the same force acts on a bigger object it will accelerate less than that force on a smaller object.

The continuous force, - (how much the object is pushed), the bigger the push or force, the bigger the acceleration.

The gradient of the slope, - (the height of the slope that the object moves down)

...read more.

Middle

The computer program which measures the acceleration of the trolley down the slope is accurate to 0.01 m/s/s. This will ensure that my results are accurate.

I will measure the acceleration of the trolley at each height three times, and then take the most sensible result or average, excluding anomalies and therefore ensuring reliable results.

Obtaining Evidence

...read more.

Conclusion

The fact that each of my experiments was done three times increases the reliability of my results. I think that it is important to do each experiment three times. That way, if you have very conflicting results, it is easier to see which the anomaly is and which the two reliable results are.

If I was going to re-do my experiments I would change a number of things. I would do more heights, increasing it to 60 or 70cms. That way, it is easier to see patterns on and draw conclusions from your graphs. I would be careful to keep all other variables, apart from the height, the same at all times. I would also try and be more precise about measuring the height of the ramp. These would make the experiment generally more accurate.

Another idea I had on how to perhaps make the experiment more accurate would be to use set angles rather than set heights. E.g. 5 degrees, 10 degrees, 15 degrees, and work out the height using trigonometry accordingly.

...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. To investigate how the angle of a slope affects the acceleration of a marble.

    Repeat with the slope at: 10o, 20 o, 30 o, 40 o, 50 o, 60 o, 70 o, 80 o, and 90 o. Use the formula: Sin (Angle needed) x Length to find the height the slope must be to make it the required angle.

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

    Another less mathematical way of proving this is to do with gravitational potential energy and kinetic energy. I say in the background information I have included that gravitational potential energy is the energy something has because of its position. Kinetic energy is the energy a body has because of its movement.

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

    T (number of bars x 0.2) A = 138 = 62.727 cm / sec squared 2.2 Therefore acceleration for added mass 100g = 62.727 cm / sec squared Fixed Height: 30cm Added Mass: 200g BAR LENGTH (cm)

  2. In this experiment I aim to find out how the force and mass affect ...

    The length of the ramp is 124.8cm. 124.8 sin 5� = 10.88cm(this is the height the ramp must go) I know that by dropping a ball straight down, at a 90� is roughly 9.8m.s.-2. By dividing 9.8 by 90 and multiplying it by 5, I can effectively get the acceleration of the ball due to gravity.

  1. Motion of an object as it slides down a slope at different angles to ...

    The metal cylinder has base diameter 25mm and height 27mm - hence quite a small object. We have not measured the mass since my equation told me that the mass of the object is not needed. The table's top surface is 70cm from the floor, i.e.

  2. Investigation to Determine how the Height of a slope Affects the Speed of an ...

    either the marble will stop completely or it will slow down so much that the speed on the run-off distance will be a lot slower than the speed of the object at the bottom of the slope and that is what we are trying to work out.

  1. Lab Report on Acceleration

    Part B: Data Collection: Additional Mass of Cart (g) Time (s) Trial 1 Trial 2 Trial 3 Trial 4 LG1 LG2 LG1 LG2 LG1 LG2 LG1 LG2 0 0.39 0.20 0.39 0.20 0.40 0.20 0.40 0.20 50 0.42 0.21 0.43 0.22 0.42 0.21 0.43 0.22 100 0.46 0.23 0.46 0.23

  2. Basically I have been asked to act as the two enthusiastic experts and test, ...

    ? 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. No harmful substances are being used, neither are flames, solvents, atomic-reactors or insurance salesmen so all-in-all a relatively safe experiment.

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