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

What affects the speed of a moving vehicle?

Extracts from this document...

Introduction

What affects the speed of a moving vehicle?

Plan

Aim

The aim of our investigation was to find out what variables affect the speed of a moving vehicle. We chose to investigate the effect of gradient change on a moving vehicle.

Variables

The independent variable in our experiment is the gradient of the ramp.

The dependant variable is the speed of the trolley.

Apparatus

image00.png

Method

  1. First we will set up the equipment carefully and safely.
  2. Then we let go of the trolley at the top of the ramp, being sure not to push the ramp (or it would not produce a fair test).
  3. Next we will record the speed taken by the computer into our table of results (see below).
  4. We will repeat the experiment four times at each gradient to gain a good range of accurate and reliable readings.
  5. We will test the trolley at seven different gradients to get adequate results.

We decided that in our experiment we would measure the speed of the trolley in m/s.

...read more.

Middle

3

no

4

no

5

yes

We found that the trolley only began to move after a minimum of five books had been placed under the ramp.

        We also used the preliminary experiment to find out what intervals to use, we decided to use intervals of 5 books each time as this would produce more dramatic results

...read more.

Conclusion

recorded by a computer via light gates, we could not have timed the trolley so accurately using stop clocks or other devices.

        Our results cover a wide range which supports our conclusion and allows us to see the shape of the graph easily. Using the graph we could predict other values for new gradients.

Method

Possible causes of error could include

  1. The force on the trolley being pushed down the ramp
  2. Wind in the form of a light breeze assisting the trolley along the ramp

Improvements to make the method more reliable could include using the same person each time to let go of the trolley to ensure that the same force was exerted on the trolley each go

Further work to extend the investigation could include experimenting with the mass of the trolley by using weights to see how they affect the trolley, or measuring the acceleration of a trolley with a changing gradient (rather than measuring the speed).

...read more.

This student written piece of work is one of many that can be found in our GCSE Gradient Function 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 Gradient Function essays

  1. Curves and Gradients Investigation

    y = x³ Gradient = (x + h)³ - x³ (x + h) - x = (x + h)(x² + 2xh + h²) - x³ (expand brackets) h = (x³ + 2x²h + xh² + hx² + 2xh² + h³)

  2. I have been given the equation y = axn to investigate the gradient function ...

    there is confirmed by using the general result The process of finding a general expression for the gradient of a curve at any point is called differentiation. The general gradient expression for a curve y=f(x) is itself a function so it is called the gradient function.For the curve y=x� as

  1. I am going to investigate the gradients of different curves and try to work ...

    will be working out the gradients of tangents to the curve by using the equation: Gradient = difference in y values difference in x values To help in this, I will draw the tangents to the curve at x values 1 to 4.

  2. The Gradient Function Investigation

    Proving I can prove my rule in a similar manner to before, by working through a 'small increments of size "h" method' calculation with the curve y = Axn.

  1. The Gradient Function

    I am therefore predicting, that the gradient function of y=3x2 will equal 6x. Below is the table of values for the curve y=3x2: x -2 -1 0 1 2 x2 4 1 0 1 4 3x2 12 3 0 3 12 y=3x2 12 3 0 3 12 Once again, below

  2. The Gradient Function

    This proves that the gradient is a measure of steepness, and since these lines are parallel to the X-axis they have no gradient. Thus the final conclusion that I have come to is that for all equations of Y=axn where n = 0, the gradient is 0.

  1. Investigate gradients of functions by considering tangents and also by considering chords of the ...

    also by looking at the graph: the lines get steeper and steeper. It also shows that the larger x is, the larger the difference between x2 and g. Let us see the relationship between X and g. g1=2=2x1 g2=4=2x2 g3=6=2x3 g4=8=2x4 Obviously, the formula for y=x2 is g=2x.

  2. The Gradient Function

    1.0001 1.00001 y1 2.25 1.21 1.0201 1.002001 1.00020001 1.0000200001 Gradient y1-y x1-x 2.25-1 1.5-1 =2.5 2.1 2.01 2.001 2.0001 2.00001 From this we can predict the gradient to be 2 because the numbers behind the decimal point become insignificant. This shows us the gradient of only one point but to

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