• 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
3. 3
3

# Experiment to find the specific heat capacity of an aluminium block.

Extracts from this document...

Introduction

Experiment to find the specific heat capacity of an aluminium block. DATA COLLECTION: Mass(m) (kg) (5dp) Current(I) (A) (2dp) Voltage (V) (2dp) Time(t) (s) (0dp) Initial temp(T1) (�C) (2sf) Final temp(T2) (�C) (2sf) +/-( 5*10^ -4) % +/- (1*10^ -1) % +/- (4*10^ -2) % +/- (5*10^-1)s +/- 0.5 �C +/- (5*10^ -1) �C 0.99577 3.70 12.07 0 16.0 16.0 0.99577 3.70 12.08 60 16.0 18.0 0.99577 3.68 12.10 120 16.0 20.0 0.99577 3.66 12.11 180 16.0 22.0 0.99577 3.68 12.10 240 16.0 25.0 0.99577 3.64 12.08 300 16.0 27.0 0.99577 3.64 12.08 360 16.0 30.0 0.99577 3.65 12.03 420 16.0 33.0 DATA PROCESSING AND PRESENTATION: As Q=m.c.(T2-T1) Where Q= energy transfer C= specific heat capacity We can rearrange this to give: C= Q/(m(T2-T1)) ...read more.

Middle

Q/m (j/kg) Errors(J/kg) Final temp(T2) ( �C) (2sf) (Q) (J) (0dp) (0dp) (0dp) (0dp) +/- (5*10^ -1) �C 0 +/- 0 0 +/- 0 16.0 2682 +/- 27 2693 +/- 30 18.0 5343 +/- 32 5366 +/- 30 20.0 7978 +/- 36 8012 +/- 40 22.0 10687 +/- 41 10732 +/- 40 25.0 13191 +/- 46 13247 +/- 50 27.0 15830 +/- 50 16897 +/- 50 30.0 18442 +/- 55 18520 +/- 60 33.0 The errors were calculated as follows: (% error in Q) = (% error in V) + (% error in I) + (% error t) (%error in Q/m) = (%error in Q) + (%error in m) = (% error in V) ...read more.

Conclusion

It was also difficult to keep the current and voltage constant, therefore a resistor could be used to control them. It was also difficult to make sure you took all the readings at the same time, i.e. temperature, current and voltage at the correct time interval. Therefore, if I were to repeat the experiment, I may get a computer to measure these variables, that way the computer would not have the human error reaction times when measuring time and would be able to do a number of readings within a few milliseconds. The procedure undertaken produced fairly accurate results, as it was systematic, however the results could be improved by repeating the experiment again, therefore getting rid of any anomalies that were not picked up by doing just one experiment. Specific heat capacity of an aluminium block. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Electrical & Thermal Physics section.

## Found what you're looking for?

• Start learning 29% faster today
• 150,000+ documents available
• Just £6.99 a month

## Here's what a teacher thought of this essay

4 star(s)

This is a 4 star piece of work because it is very detailed with excellent scientific calculations used throughout and a good evaluation of results. The reason this is not 5 star is because some pieces of calculations are missing with no working out to show the steps. There needs to be an introduction using scientific knowledge to explain what it is about and a detailed method to explain what results will be collected. A risk assessment is needed in all experiments. Excellent results collected.

Marked by teacher Patricia McHugh 13/05/2013

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

# Related AS and A Level Electrical & Thermal Physics essays

1. ## In this experiment, we will measure the e.m.f. and the internal resistance of a ...

So we carry out some experiments to find out which ammeter and voltmeter is more ideal and smaller zero errors. In this experiment, there are some assumptions we had made. Firstly, we assume that he d.c. voltmeter has infinite internal resistance and no current would be drawn from the circuit by the voltmeter.

2. ## Single Phase Transformer (Experiment) Report.

So transformers operate by mutual induction, with energy being transferred between two (or more) separate windings via a coupling magnetic field. Their performance can be modelled, predicted and analysed using equivalent circuits. When a transformer is not connected to a load, the secondary coil does nothing.

1. ## Objective: To use a search coil and a CRO to investigate the magnetic ...

The variation of induced e.m.f. was shown on the CRO. 13. Step 12 was repeated with placing the search coil at the end of the solenoid, across its cross-section and along its length.

2. ## An experiment to measure the specific heat capacity of water

below room temperature and heat it to an equal amount above room temperature to compensate. Any heat gained from the room in heating the water to room temperature should counteract any heat lost to the room when heating the water above room temperature.

1. ## The factors affecting the current flow through a conductor at a constant temperature.

in the experiment and have prepared a results table, the table that my conclusion will be based on. Results Table Voltage (V) Current (I) Resistance (Ohm) 1.00 2.00 A 1.00 2.00 A 0.78 0.79 0.79 0.98 0.98 0.98 0.80 0.61 0.61 0.61 0.84 0.85 0.85 0.72 0.43 0.43 0.43 0.60

2. ## Investigating the relationship between pressure, volume and temperature of a gas

The volume of the air inside is equal to the volume of the flask, which is rather fixed. Hence the air inside is conditioned to change its pressure and temperature at constant volume. (III) P-V at constant T To establish a constant temperature environment while allowing pressure and volume to

1. ## The purpose of this experiment was to measure the specific heat capacity (Cb) of ...

Mc = mass of copper caloerimeter (Kg) Cw= specific heat capacity of water = 4.2*103 J kg-1K-1 Cc= specific heat capacity of copper = 0.39*103 J kg-1K-1 Cc= specific heat capacity of brass =....?... J kg-1K-1 Experimental procedure: To complete this experiment the following apparatus was used: � Heat plate � thermometer � Copper sample � Calorimeter � Glass beaker � Weighing scales 1.

2. ## Electrical Energy Questions and Answers

Direction of an electric field at any point is defined as the direction of the force on a positive charge when placed at this point 1. Present diagrammatic information to describe the electric field strength and direction 1. Although an electric field is a region of influence, it is represented

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