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# GCSE Physics Coursework

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Introduction

GCSE Physics Coursework - Resistance of a Wire Coursework Introduction We are finding the resistance a length of copper wire by using a vote meter (V) and a ammeter (A) Tables Length of wire (mm) Current (A) Voltage (V) 100 8.23 0.60 200 6.63 1.04 300 6.03 1.26 400 5.70 1.45 500 5.23 1.41 600 4.93 1.54 700 4.38 1.49 800 4.25 1.65 900 4.11 1.68 1000 7.99 6.80 Length of wire (mm) Current (A) ...read more.

Middle

This happens then the wire is longer there are more free elections to collide with other free elections. Therefore more energy will be lost as heat Also when the length of the wire is doubled the resistance will also be doubled, is happens because is will double the collisions, then this will double the energy lost. Method 1. One metre length of 0.4mm diameter of copper wire is fixed to a metre rule. 2. The first crocodile clip is clipped to the wire at the 0cm position on the metre rule. ...read more.

Conclusion

5. The power supply is then turned off and the second crocodile clip is moved to the next position. The above steps are completed for each length and then the entire investigation is repeated for accuracy. Safety With this experiment there was one hazard, the power pack has a high voltage so we kept it at 6V Conclusion There is a direct link between the length and the resistance. The longer the wire the higher the resistance. Evaluation. There is some variation between them so more readings for each one will increase the accuracy ?? ?? ?? ?? Kieran Denny Oasis Academy Mayfield Cand:8288 Kieran Denny Oasis Academy Mayfield Cand:8288 ...read more.

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1. ## Physics Coursework

* I will connect the ammeter in series to the power pack. * Next, I will connect one end of the 10cm constantan wire in series to the ammeter using a crocodile clip-ended cable. * Using another crocodile-clip ended cable I will connect the other end of the cable to the power pack to complete the circuit.

2. ## Physics Coursework

The other type of suitable circuit architecture I could use is a "Wheatstone Bridge". It is mainly used to sense very small changes. When popularised by Sir Charles Wheatstone he used a very sensitive device to measure current called a Galvanometer.

1. ## Resistance Coursework

taking the readings quickly so that we only allow the current to flow for a small amount of time, so that the wire does not heat up too much. Then after that I will have to leave the wire for a while, while it cools downs.

2. ## Resistance of a wire - PHYSICS COURSEWORK GCSE

7 Crocodile clips Circuit diagram: Method First I will do some preliminary experiments (see further on in this dissertation) these will better inform me of how to best set up my investigation, what the range of results will be and to what degree of accuracy I will need to record my results to.

1. ## Physics Coursework Gravity Investigation

Furthermore, in order to obtain readings for the hot squash ball, the ball was simply rolled on a bench several times to generate some heat. Justification: To achieve the most accurate result possible, it is important to investigate a ball that bounces constantly.

2. ## Resistance Coursework

The combination of resistance and reactance is called impedance, Z. When the impedance, equivalent to the ratio of voltage to current, in an alternating current circuit is constant, a common occurrence, and Ohm's law is applicable. For example, V/I = Z.

1. ## --- PHYSICS INVESTIGATION ---

My preliminary results have shown that 'as the length of a wire increases the resistance also increases. I have used the ammeter ranging from 0 - 1A as it is more accurate (reads in interval of 0.05A) but have lowered the voltage on the power pack/supply so all results range between 0 - 1A.

2. ## Resistance coursework

Using the 0-1 ammeters to provide a more accurate result. We may also use the 0- 2 ammeter if we require to do so Crocodile clips To attach the wires to the constantan wire. Sneha 11'O Apparatus Method: 1. Make a table reading length of wire voltage (volts)

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