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# Density of a Regularly Shaped Block of Aluminium

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Introduction

Title: Density of a Regularly Shaped Block of Aluminum Aim: To determine the density of a regularly shaped rectangular block of Aluminum by dividing its mass by its volume. Hypothesis: It is predicted that the density would equal the mass divided by the volume of the block of aluminum. Apparatus: Electronic Balance Centimeter Ruler Method: Use the electronic balance to record the mass of the aluminum block in grams (g). Then record the length, width and height of the block using the centimeter ruler. Next, calculate the volume of the block (cm�) by multiplying the dimensions together. Afterwards determine the density (gcm� �) ...read more.

Middle

= Mass (g) / Volume (cm�) Average Density (gcm� �) = (Sum of all blocks) / Number of Blocks Conclusion: Blocks number one and two's length, width and height were equal because the aluminum blocks were cube shaped. By multiplying their dimensions together, the volume resulted as 2.197cm�. By dividing the block's mass of 5g by its volume 2.197cm�, the density resulted in 2.27583gcm� �. They have equal density. Block number three had the same length and width as Block number 4 with a length of 8.8cm, and a width of 2.5cm. But block number three's height was 0.60cm, which made it 0.05cm thinner than block number four which had a height of 0.65cm. ...read more.

Conclusion

Another source of error could be a miscalculation of the dimensions, volume, density or average density. To improve the accuracy of your calculations, write down each figure to multiply, divide or add with appropriate labels in your table. Next, take your time performing the necessary calculations slowly on a calculator. To make sure the calculations are correct, have a friend check it over with a different calculator. A source of error could also be rounding off figures, this could result in incorrect results. To improve this, write down the exact figure up to a certain decimal place and be consistent about the decimal place with each figure to maintain a fairly accurate result. ?? ?? ?? ?? Alannah Vellacott Skill B 12-Wright ...read more.

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