• 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

# To See Which Surface Is the Roughest

Extracts from this document...

Introduction

FRICTION Aim: To see which surface is the roughest Prediction: I think sandpaper will be the roughest surface because friction will act when the solid surface of the tyres is in contact with the surface of the sandpaper. The two surfaces catch on each other. When the tyre is moving one way, the friction force acts in the opposite direction. I think paper will be the least rough surface because it will have little friction acting on the car, which would make it easy for, the to car move. ...read more.

Middle

Apparatus: Sandpaper Wood Paper Polythene Foam Car Diagram: surface car force metre Table Method: I set up the apparatus by:- 1- placing the surface on the table. 2- I then put the car on top of the surface. 3- I hooked the string on to the force metre. 4- I tested five surfaces and found my result by pulling the string slowly till the car moved from the surface and read the result off the force metre. ...read more.

Conclusion

Evaluation: Sandpaper made the car exert the most force to move and it took the most time to move. The result showed the greater the friction the less movement there was. It was less likely to move on sandpaper then it was on the other surfaces. The other surfaces showed very little friction acting on the car, which made it difficult to slow the car down. I could have made the experiment better by applying cello tape on to the surface so it remains flat. I could have also made it better by testing the result four or five times to get an accurate reading. ...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
• Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to
improve your own work