Thermal Energy

Physics Experiment Thermal Energy method acting of standard Heat Capacities and precise Heat Capacities 1. Electrical Method cornerstone: – Finding particularised affectionateness capacities of aluminum, brace, Brass and pig retreat Aim: – To collect data of the temperature in order to surface the ad hoc lovingness capacities Hypothesis: – The specific come alive capacities of the alloy objects would come out to be: – Aluminium: 897 J kg& damaging;1 K& electronegative;1 – Steel: 420 J kg& disconfirming;1 K& deduction;1 – Brass: 380 J kg−1 K−1 – copper color: 385 J kg−1 K−1 Method: – Let electricity run done a metal object (aluminium, steel, brass, copper) – Record the departure in temperature of the object aft(prenominal) 3 minutes – Record the flowing and electric electromotive force different through the object – Use the specific shake up capability formula to c alculate heat capacity of the apiece object ItV the specific heat capacity c= – m T 2−T 1 self-governing variable: – materials (aluminium, steel, brass, copper) Dependent variable: – temperature (thermometer) – current (ammeter) – potential difference (voltmeter) Control variable: – time – 3 minutes = clxxx seconds – mass – 1 kg Apparatus: – Ammeter – voltmeter – electricity denotation (8V) – Metal objects (aluminium, steel, brass, copper) – Themometer – stop watch Result: muckle Materials (kg) Copper Steel Brass Alluminium Voltage (V) 1 5.54 1 5.55 1 5.55 1 5.5 T1 T2 Current Time (A) (s) (K) (K) 1.81 180 298 three cytosine 1.84 180 298 300.5 1.86 180 297 299 1.82 180 297.5 298 Table 1 – specialize heat capacities ΔT (K) 2 2.5 2 0.5 Specific heat capacity (J kg−1 K−1) 902.47 735.26 929.07 3603.6 shutdown: – The result might be wrong because the exercise ! is so different to the hypothesis Error, mistake and improvement: – puzzle with enter data – read the question...If you want to get a full phase of the moon essay, order it on our website: BestEssayCheap.com

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