• 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

# Physics CourseWork - Terminal Velocity

Extracts from this document...

Introduction

Laura Clements 11HR Physics Course Work Terminal Velocity Aim: To find out how the weight of an object affects the Terminal Velocity. Method: This will be done by dropping a paper cake case from a height of 2 metres and measuring the time taken from it being dropped to it hitting the floor, the weight will then be increased by adding an extra cake case each time and carrying out the same method at each weight. The time taken for the cake case to reach the ground and the distance that it is dropped from will be measured. There are not many safety precautions involved in this experiment, whilst carrying out the experiment care will have to be taken not to fall off any high apparatus if standing on it to reach the 2metres needed to drop the paper case. Apparatus: The apparatus that will be needed to do this is: � Stop Clock � Cake Cases � Metre rule Variables: The variables that might affect ...read more.

Middle

Terminal velocity is when the air resistance becomes equal to the gravity force and so acceleration stops, the object cannot go any faster it has reached terminal velocity. At the instant of release there is no friction because the object is not moving. The weight of the object makes it accelerate downwards, because gravity is acting on it, the heavier the object the faster it will accelerate. Because gravity is a constant force, it always stays the same; the velocity and the air resistance have to increase to balance it. So unless the weight of the paper case changes there is always the same force of gravity acting on it. So it is expected that there will be a straight line of best fit on our graph of results. Analysis: The results gained from the experiment show that my prediction was correct, as the amount of Newtons increase the terminal velocity is faster, the shorter time it takes for it to hit the ground. ...read more.

Conclusion

3.15m/s is the average increase in the terminal velocity each time another paper cake case is added. This shows that adding extra weight increases the terminal velocity quite significantly. This is because terminal velocity is when the air resistance becomes equal to the gravitational force acting on the object and so the acceleration stops. The heavier the object the shorter time it takes for it to reach its terminal velocity. Evaluation: I think the experiment worked quite well, a lot of reliable results were obtained which could be analysed easily and this meant we were able to fulfil our aim. Most of the results are quite reliable; we did 6 experiments at each weight and took an average, which meant they were quite reliable. But because of human error they may not have been as reliable as they could have been, especially as the number of paper cases, and so the weight, increased. We could have improved the experiment by using data logging, electronic sensors, to drop the paper cases through, this would have eliminated human error. ...read more.

The above preview is unformatted text

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

## Here's what a teacher thought of this essay

3 star(s)

This is a nice first attempt at a report.
1. The use of subheadings to give the report structure is good, although some sections are missing.
2. The use of a diagram to illustrate a scientific concept is good.
3. The report needs an introduction that includes relevant information.
4. The report is missing a results table and graph.
*** (3 stars)

Marked by teacher Luke Smithen 22/05/2013

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. ## The aim of this experiment was to compare the elasticity of arteries and vein ...

4 star(s)

-1 140 44 45 15.79 -1 160 44 46 15.79 -2 180 44 46 15.79 -2 200 44 46 15.79 -2 220 45 46 18.42 -1 240 45 47 18.42 -2 260 45 47 18.42 -2 280 46 47 21.05 -1 300 47 47 23.68 0 Veins: Force Applied (g)

2. ## Determining the acceleration due to gravity by using simple pendulum.

T, TIME TAKEN(s) G, ACCELERATION DUE TO GRAVITY (m/s�) 2L (m) 0.20 0.202 9.802 0.041 0.40 0.40 0.286 9.78 0.082 0.80 0.60 0.349 9.852 0.122 1.20 0.80 0.404 9.803 0.163 1.60 1 0.452 9.79 0.204 2 0 0 0 0 0 From the results above, the acceleration due to gravity is fairly right as.

1. ## Bouncing Ball Experiment

The ball starts at height h1. GPE = m � h1 � g * Energy ball starts with = mh1g * No energy is lost when the ball is falling; there is no air resistance, so no Thermal Energy is produced.

2. ## investigate the size of craters in sand when a marble is dropped

Conclusion From my results I have found some good trends. The higher the height from which a marble is dropped into sand the larger the area of the crater made is. I have also found from my preliminary results that at a certain height the area of the crater stays the same.

1. ## The effect of the temperature on the viscosity of the syrup.

Situate the beaker and stand it carefully at the centre of the stand, so that it does not slip away. Extra care should be taken when dealing with the beaker such preventing it from breaking. Table of results for Preliminary work Temperature Difference in density (sphere & syrup)

2. ## The Study Of the Motion Of A Falling Cake Case With Reference To Terminal ...

How will I present my data? Drop Height Time Once I have collected my data I will enter in suitable scales on the axes according to what my results will be. Background Information Aristotle (350 BC) believed that heavier objects fell faster than lighter ones.

1. ## INVESTIGATING HOW STEEPNESS AFFECTS SPEED

I expected that the graphs would look as follows: Speed Steepness (cm) A curved line showed the steepness against the speed. This shows a clear pattern, because it confirms that as the steepness increases so does the speed. When the ball sets off first, it has much more force accelerating it than the resistance slowing it down.

2. ## Report on Newton's laws of motion

What mechanism changes the objects motion 2. Why do some objects accelerate? Why do some objects accelerate more than other objects?(Serway, 2004) This report will be divided into three sections; in the first section, I will discuss Newton?s first law in details with some application.

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