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

physics lab report. Aim To determine the coefficient of static friction (μs) between a wooden block and a granite plane

Extracts from this document...



To determine the coefficient of static friction (μs) between a wooden block and a granite plane.

Data Collection

Table (1): hanging mass needed to move the (wooden block + masses).


Mass of wooden block + masses (M1) (g)


Mass of hanging masses (M2) (g)














Data Processing and Presentation

  1.        Coefficient of static friction (μs)

...read more.




image09.png                        Weight                                Tension (T)


image11.pngimage12.png                        Hanging masses

                                                Weight (W2)

Figure (1): the setup of the experiment and the free body diagrams of the hanging masses and the (wooden block + masses)


M1: mass of wooden block + masses                                

M2: mass of hanging masses

N: normal force

fr: frictional force

W1: weight of wooden block + masses

W2: weight of hanging masses


g: acceleration due to gravity

μs: coefficient of static friction

At the instant of motion:

                                            Frictional force (fr) = Weight(W2)

                                                                       fr  =  W2(substitute fr = μs* N)

                                                               (μs) (N) = (M2) (g)         (substitute N=W1)

                                                            (μs) (W1)

...read more.


  1. Placing a photogate connected to a lamp or bell exactly in front of the (block + masses). When the block moves, however slightly, the lamp would light up or the bell would start ringing to indicate the motion of the (block + masses).
  1. Making sure the scale of the balance is always viewed at a right angle to avoid parallax error.
  1. Conducting more trials and taking the average result in order to minimize the affects of random error.

...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. Determination of Coefficient of Friction

    x weight of one weight -> Normal force = 0.60 + 1n, where n is the number of weights added. When I added 0 weights, normal force = 0.60 N; When I added 1 weight, normal force = 1.60 N; When I added 2 weights, normal force = 2.60 N;

  2. Motion of the trolley on the inclined plane

    Best-fit Line, max and min slope. Graph 2: a average(t). Best-fit Line. Graph 3: V(t).The relation between the velocities. Graph 4: The relation between acceleration and time. Conclusion: The constructed graphs prove the hypothesis incorrect. The line touches all error bars, so it means there is a relationship between the linear quantities.

  1. Analyzing Uniform Circular Motion

    And a radius of 0 m means no motion can occur, therefore (0,0) could have been included as a point; although not measured. The y intercept also suggests that the values for the frequencies will be more than the theoretical.

  2. Physics lab - Cantilever Beam

    0.0210526315789474 Relative error of b: 0.02 � 0.28 = 0.0714285714285714 Sum of Relative errors: 0.0210526315789474 + 0.0714285714285714 = 0.0924812030075188 Absolute Uncertainty: 0.0924812030075188 � 3.392857 = � 0.313 � � 0.3 Final Answer: 3.4 � 0.3 (gradient) Hence, is equal to 3.4 � 0.3 Y-intercept will be equal to ln()

  1. Simple Harmonic Motion Physics HL Lab Report

    of a protractor as 4 degrees * Markings were made on the string with the help of a metre rule and a pen and 50cm, 40cm, 30cm, 20cm and 10cm were marked with the bob attached to it. * After taking several readings for each string length marked for increased

  2. Investigate the Size of Craters in Sand Due to Dropped Object.

    have constant values. This is because no wonder at any point the slotted mass was dropped; it will give us the constant surface area of the craters, which is circle. But as mentioned before, the depth of craters will be varied because it really depends on the height at which it was dropped.

  1. Physics Friction Lab Report

    using the electronic scale. Do not rely on the mass readings on the masses themselves, as time and wear has significantly decreased the mass shown. Data Recording 10. Now you will record the two masses in a data table. First of all, record appropriately the mass of the block and

  2. HL Physics Revision Notes

    P=F/A i.e. force per unit area. Assumptions of the kinetic model of an ideal gas: Newton?s laws apply to molecular behaviour There are no intermolecular forces The molecules are treated as points The molecules are in random motion The collisions between molecules are elastic There is no time spent in these collisions.

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