• 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

# In this experiment, I predict that as the force increases, as will the acceleration. Therefore, as the force decreases the acceleration decreases.

Extracts from this document...

Introduction

## GCSE Science Coursework : Physics

Prediction:

In this experiment, I predict that as the force increases, as will the acceleration. Therefore, as the force decreases the acceleration decreases. I can also predict that the force and acceleration of an object are directly proportional, meaning that if the force was to be doubled, then the acceleration would also double. I can predict this using Newton’s second law of motion.

## Newton’s second Law of motion:

Force      =         Mass x Acceleration

(N)                    (kg)         m/s

(variable)                      (measurement)

In simple terms, this means that if the force is to increase then the acceleration must also increase because the mass multiplied by the acceleration must equal the force.

The equation, like many others can be re-arranged in order to show a possible prediction for the value in m/s  that the acceleration will be the subject of the equation.

Acceleration     =    Force          (Mass / 0.400kg)

Mass

Weight is a force. Weight is quite oftenly confused with mass, however each one differs to the other. Mass is measured in kilograms (kg). The weight of an object only concerns the amount of matter an object is made up of.

Middle

The experiment will be measured on 3 occasions for each variable, these repeat readings will be averaged out into a single figure to gain an accurate set of results.

To prepare for the investigation, a preliminary test was carried out in order to discover which mass of the rider produced the most accurate results.

To do this, the lightest mass of the rider was used with the lightest and heaviest weights (0.020N - lightest) and (0.170N - heaviest).

The masses of the rider were the largest possible (0.400 kg) and the smallest possible ( 0.200kg).

The results showed me that the lighter the mass of the rider, the wider the range of results that I recorded. In contrast, the heavier the mass of the rider was, the more reliable my results were because they provided the smallest range.

Conclusion

I was able to produce these predictions by re-arranging Newton’s second law to show me what the acceleration of an object can b equal to in terms of its force and mass.

(Old equation)

Force      =         Mass x Acceleration

(N)                    (kg)         m/s

(variable)                        (measurement)

(New, Re-arranged equation)

Acceleration     =    Force          (mass / 0.400kg)

Mass

I have a range of values for my force,  I inputted each one of these values to gain predicted results.

(When force = 0.02) :    0.02           =        0.05       (Actual average = 0.05)

0.400

(When force = 0.03) :   0.03            =        0.075     (Actual average = 0.07)

0.400

(When force = 0.07) :   0.07            =        0.175     (Actual average = 0.08)

0.400

(When force = 0.08) :   0.08            =        0.20       (Actual average = 0.20)

0.400

(When force = 0.12) :   0.12            =        0.30       (Actual average = 0.31)

0.400

As the above figures  display clearly, my results are all highly accurate and sufficiently support my prediction and theory.

All that remains is to discuss how I can extend my investigation. The obvious point that springs to mind is to gather further results to obtain an exceptionally high level of accuracy. However, I can also look to change my variable from the force to the mass of the rider. I can do this by investigating the relationship between the mass and force on a rider to give me additional information.

I can carry out these tests in the same manner as I have discussed for this particular investigation, but changing the variables used. I will use a range of variables that will aid me complete my investigation reaching sufficient conclusions.

This student written piece of work is one of many that can be found in our AS and A Level Mechanics & Radioactivity 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 AS and A Level Mechanics & Radioactivity essays

1. ## Investigating the relationship between force, mass and acceleration

Measure the trolleys new acceleration as it travels down the ramp. 6. Repeat this for a mass of 2kg. This varies the mass of the trolley while keeping the force constant. 7. Plot two graphs of your results.

2. ## Investigating Force, Mass and Acceleration using a Trolley

M = mass of trolley The hanging mass used is 0.06 kg which acts a force of (0.06g)

1. ## Investigating the factors affecting tensile strength of human hair.

Force = 0.098N 2. Cross Sectional Area (�m2) = ?r2 E.g. 3.14 x 26 x 26 = Cross Sectional Area (�m2) Cross Sectional Area = 2122.64�m2 3. Stress (Nm-2) = Force (N) / (Cross Sectional Area (�m2)/1000000) E.g. 0.098 / (2122.64/1000000) = Stress Stress = 46.16892172 (Nm-2)

2. ## Centripetal motion. The objective of this experiment is to verify whether the tension ...

= 0.00005/0.0211 x 100% � 0.237% Percentage error in length of the nylon thread (l) = 0.0005/0.800 x 100% � 0.0625% Percentage error in time taken for complete revolutions / % 30t (� 0.05s) t (� 0.00167s) 1st set 2nd set 3rd set Mean 0.258 0.245 0.253 0.252 0.252 0.309

1. ## OCR B Advancing Physics Physics Practical Investigation Coursework Investigating Simple Harmonic Oscillations

how easy it is for the water to be displaced sideways by the masses - increasing the diameter could potentially make the displacement easier, losing less energy and having less damping effect. If this experiment was to be repeated I would ensure that the mass was of constant surface area.

2. ## Physic lab report - study the simple harmonic motion (SHM) of a simple pendulum ...

Make sure the spring is mostly moving in a vertical direction and not swinging to and fro. (iv) After a few oscillations, ask student C to stop the video. (c) Student conducting the video-taking (Student C) (i) Set up the video camera and fix it on the tripod stand firmly.

1. ## Force of Friction experiment

/ N 1.86 3.73 5.59 The coeffiient of friction of the wooden blocks on various materials are summarized as follow: wooden plank plastic plate brick 0.57 0.43 1.2* 0.27 0.21 0.6 * It is abnormal for the coefficient greater than 1. Refer to the Discussion on page 7.

2. ## In this report I will start by exploring the history of the Computerised Tomography ...

These are the gantry, operating console and a computer. Figure 1.2 shows the order in which the information passes. Figure 1.2 shows only basic components; other components will be explained later in the course of this report. Arguably, the most important part of a CT scanner is the gantry.

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