• 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

Factors affecting the terminal velocity of a falling cone

Extracts from this document...

Introduction

Factors affecting the terminal velocity of a falling cone Introduction When a cone is dropped from a certain height, a force known as air resistance is acting on it to try and slow down its rate of descent. When an object is first dropped the only force acting on it is its own weight pulling it down. Because no force is acting against it, it accelerates. As it accelerates air resistance begins to act upon it but the forces are still unbalanced so the cone still accelerates. As the two forces, weight and air resistance, balance the object reaches terminal velocity and is at a constant speed and not accelerating. This is what will happen to the cone as it is dropped in this experiment. Factors that could I could change To affect the terminal velocity of my falling cone I could change many factors: * The weight of the cone- adding pieces of plastercine * Air resistance- reducing the surface area of the cone * Speed-start the timer as soon as we drop it We have chosen to change the Air resistance on the cone by reducing the surface are. ...read more.

Middle

Glue- to glue the cone together Method In our experiment we will drop cones from the ceiling which is 3 metres high, we will let it accelerate for 1 metre then time how long it takes for it to fall the remaining two metres. We will drop the cone three times then record the average. The first time we drop it, it will have no holes in but we will add one extra hole after we have taken the average of the times of the last 3 drops and see what difference it will make. The holes will be 1cm in diameter and will be made with a hole punch, and the cone will be 20.5 cm in diameter and will be made out of paper. No. of holes 1 (seconds) 2 (seconds) 3 (seconds) Average (seconds) Speed (m/s) 0 1.17 1.23 1.11 1.17 1.70 1 0.99 1.02 1.02 1.01 1.98 2 1.05 0.92 0.97 0.98 2.04 3 0.93 0.97 0.95 0.95 2.11 4 0.91 0.93 0.98 0.94 2.12 5 0.80 0.74 0.77 0.77 2.59 6 0.71 0.76 0.75 0.74 2.70 7 0.79 0.76 0.73 0.76 2.63 8 0.68 0.65 0.74 0.69 2.89 9 ...read more.

Conclusion

Evaluation There are many positive procedures during this experiment, dropping the cone 3 meters and measuring it 2 metres allowed the cone to reach terminal velocity. When adding holes to the cone the same hole punch was used ensuring that all the holes were the same size. One person dropped the cone and another person timed it, these stayed the same therefore reducing the variables. Each drop was then repeated three times and an average was taken, this increased reliability. However when the holes were punched they were unevenly spread out which affected the way the cone fell. If I did it again I would spread the holes out evenly. The results from my experiment are reliable and sufficient. I know this as there is just the one odd result, this occurred when the cone had 7 holes in it. This could have been for two reasons, there could have been a door or a window opened somewhere in the room or the person timing could have lost concentration. Despite this my results were sufficient enough to support my prediction. There is also constant pattern in that as the number of holes increased so did the speed that it fell which meant a strong positive correlation on my graph. ...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

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. Factors Influencing Resistance of a Wire

3 star(s)

1.9 6.333 80 0.3 2.7 2.4 2.55 8.5 100 0.3 3.0 3.1 3.05 10.166 120 0.3 3.4 3.5 3.45 11.5 I calculated the average voltage by using the following calculation: Average Voltage/V= Voltage1+Voltage2 2 e.g. Average Voltage/V= 0.6+0.6 = 0.6V 2 I calculated the resistance by using the following formula: Resistance/?= Average Voltage Current (A)

2. Discover the effect that height and weight have on terminal velocity.

Time Of Fall 1 + Time Of Fall 2 + Time Of Fall 3 3 The Answer is given in seconds On the results table the average time of fall was used to calculate the terminal velocity. To Calculate the Average Terminal velocity for each weight, all terminal velocities for each weight were added together and divided by five.

1. Investigate the factors affecting the rate of descent of a parachute.

the force of gravity According to this theory, the heavier the object, the faster the rate of descent. Method Equipment: Stop watch- I have chosen this method of timing because it is accurate and easy to use. Bin bags- they are a very flexible material and move through the air well.

2. Investigate a factor that might affect the size of a crater made by a ...

However, the prediction also expected something else to happen which the results did not support. It was expected that if the object had enough falling distance to reach it terminal (maximum and constant) velocity then from then onwards regardless of the heights increasing the crater would stay the same size as the object can not fall any faster.

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

Speed (m/s) 20 58 58/50 = 1.16 1/1.16 =0.86 50 33 33/50 =0.66 1/0.66 =1.52 After looking at the results I decided to keep the runway at 50 cm as this gave a better speed-readings. I felt this height would be preferable for my final experiment as a small error

2. Investigate the factors which affect the terminal velocity of a falling object.

* The terminal velocity of a ball bearing is inversely proportional to the viscosity of the fluid. This is a predicted shape for the results graph showing the variation of velocity with respect to time. This velocity-time graph shows the ball bearing initially accelerating from rest but the acceleration is gradually dropping until it reaches 0ms-2.

1. How Fast Does a Paper Cone Fall?

folded over themselves by a quarter of their circumference to form cones. This measurement must be accurate or the size of our cones will change out of proportion. They will be sellotaped in place, using the same amount of sellotape each time, so that no more than one factor is changed.

2. Investigation into how the speed of a falling cone is affected by its mass.

To make my investigation fair I will control the following factors: * Keep the same height * Hold the cone in the same way * Drop the cone from the same place * Not drop the cone from outside because the wind might affect the way that the cone falls.

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