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

Measuring the density of cubes of Aluminium and Brass

Extracts from this document...


                        MEASURING THE DENSITY OF A CUBE

Aim: To measure the mass and volume of an aluminium cube and a brass cube in order to find the density of each cube using the equation (density = mass/volume).

Equipment: Ruler, triple beam balance, electronic balance, measuring cylinder, aluminium cube and brass cube.

Method of measuring mass:

  1. Place the aluminium cube on top of the triple beam scale.
  2. Move the triple beam weights till both weights line up.
  3. Record the mass of the cube.
  4. Repeat steps 1-3 for brass cube.
  5. Place the aluminium cube on top of the electronic scale.
...read more.


       53.8 +/- 0.05

       58.7 +/- 0.05

Electronic scale

       53.8 +/- 0.05

      58.7 +/- 0.05




      2 +/- 0.05

     2 +/- 0.05


      2 +/- 0.05

     2 +/- 0.05





Ruler and calliper:

Aluminium: 2cm±0.05cm per side

Percentage uncertainty =0.05/2=2.5%     2.5 X 3= 7.5%

Absolute uncertainty= 7.5% x 2= 0.15cm

Volume= 2^3=8cm^3 ± 0.15cm^3

Brass: 2cm±0.

...read more.



In this experiment our results were not very accurate because of the 25% uncertainty, we could improve our precision and accuracy of our results by:

  • Used different people to measure the cube in order to get a more precise result.
  • Used better equipment to improve accuracy.
  • Repeat the water displacement test to increase accuracy by using an average.
  • Keep constant room temperature in order to keep the metal density constant.
  • Try different metals to obtain a variety of results to compare.

Vibhuthi WickramagePhysicsDensity of a cube

...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. Energy density experiment - Aim: To determine the energy density of ethanol

    Calculating mass of water and uncertainties: E.g. (values from burning 0.5g of ethanol in trial 1) Table 2. Mass of water Amount of ethanol burnt (g � 0.005g) Trial Mass of water (g �0.01g) 0.5 1 176.89 2 176.89 3 176.89 1.0 1 176.49 2 176.49 3 176.49 1.5 1 177.06 2 177.06 3 176.97 2.0 1

  2. DCP+CE Energy Density of Ethanol

    As the 30�C is the temperature difference, therefore the temperature difference in Kelvin will be 30K. With this information, it is possible to find out the energy density of ethanol. Energy density is amount of energy produced per kilogram. To find the quantity of thermal energy of water, Q, the

  1. Energy Density of Ethanol

    temperature = 30 30�C�0.40�C As shown from above, the average change in the mass of the spirit burner is 0.68g�0.02g, which indicates that there was 0.68g�0.02g of ethanol was used to heat water to have temperature difference of 30�C. This needs to be changed into Kelvin as the formula requires the temperature to be in Kelvin.

  2. HL Physics Revision Notes

    Electric current is the rate at which charge flows past a given cross-section. I=Q/t It can also be defined in terms of the force per unit length between parallel current carrying conductors. Resistance is the measure of how easily current flows.

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