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

Coefficient of Static and Kinetic Friction Phys 10 IB LAb

Extracts from this document...

Introduction

dan Stoica                April 1st, 2009

Coefficient of Static and Kinetic Friction

Problem:Is there a relationship between mass and the coefficient of static and kinetic friction?

Variables:  

                The manipulated variable is the weight of the object that is being pulled.

The responding variables are the static friction, kinetic friction, and the coefficients of those.

The controlled variable is the amount of weight that is added each trial, and the starting point on the scale.

Materials:

  • Wooden Block
  • Spring scale
  • String
  • 4 x 200 g masses

Procedure:

  1. Determine the weight(normal force) of the wooden block.
  2. Attach a string through loop around a wooden block as shown in the diagram.
  3. Adjust the force scale to zero while it is in the horizontal position.
...read more.

Middle

image01.png

image02.pngimage02.pngimage01.pngimage01.png

image02.pngimage02.png

Calculating Normal Force on Trial 1:
image01.pngimage01.png= mg

image01.pngimage01.png = (0.23817±0.001kg) (9.81ms¯²)
image01.pngimage01.png= 2.34±0.01N

Calculating the Coefficient of Static Friction:
image03.pngimage03.png
image04.pngimage04.png                
image05.pngimage05.png
                

...read more.

Conclusion

Improving:

        More trial measurements could be taken to improve the accuracy of the coefficients of static and kinetic friction. The scale should be electronic or newer to lead to more accurate measurements of static and kinetic friction. An accurate machine should pull the scale and the object so there is less error in the measurement.  The surface should be the same throughout the whole area, and there should be nothing on it that could cause errors in measurement.

Page  of

...read more.

This student written piece of work is one of many that can be found in our International Baccalaureate Physics 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 International Baccalaureate Physics essays

  1. physics lab report. Aim To determine the coefficient of static ...

    The difficulty in determining the instant at which the block started to move. The block moved so slowly that one did not always immediately notice its motion. 5. We assumed that at the instant of motion the frictional force acting on the block is equal to the weight of the hanging masses.

  2. Determination of Coefficient of Friction

    ?Normal force = ?weight of the block + ?weights -> ?normal force = ?weight of the block + 0. For each situation with different number of weights, the normal force differs as well. I calculated the normal force in this way: Normal force = weight of the block + n

  1. Research question: Part A : What is the static friction coefficient of ...

    Thus, it can be concluded that the surfaces are rougher. *Basically, the hypothesis for both experiment are the same as the difference is only due to the static and the kinetic motion Theory: In life, there is two types of friction; static friction and kinetic friction.

  2. Thermal Properties of Liquids

    Furthermore, if I were to use different equipment (i.e.: timer and digital hand-held thermometer instead of Logger Pro) these will have singular margins of error. By using a piece of equipment that records every aspect of my raw data, this margin of error will be reduced.

  1. Physics Friction Lab Report

    Then record the electronic scale reading for the mass of the hook + weights hanging from the string. Using g = 10ms-1 you can now also figure out and record the weight.

  2. Investigating the friction created on different surfaces. Factors that affect range of catapult

    The launcher was steadily released so that the box could be pushed to slide on the cement floor. 6. Then the distance traveled by the box was marked by a tape. The closest back tip of the box was used as the mark of the distance travelled by the box.

  1. Motion of a Pendulum IB 10

    Length of pendulum ( +/- 0.001m) Angle of deflection ( +/- 1 ) Time for trial 1 ( +/- 0.005s) Time for trial 2 ( +/- 0.005s) Period Average ( +/- 0.01s) Error for Period average 1.000 20 19.400 19.020 19.21 0.01 0.800 20 18.440 18.110 18.28 0.01 0.600 20

  2. Motion due to a Steady Force - Lab

    Mass of the weights and trolley travelling times Data Processing In Table 2, we processed the collected data from Table 1, using the following formulas : Applied pulling force = mw x g Measured acceleration Measured pulling force = Uncertainty of measured acceleration (sample for trial #1): Estimated reaction time is 0,2 seconds Ideal acceleration (per Newton's 2nd law)

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