1. Start writting the report by identify the manipulated and responding variable.2. Inference : Cause and effect (of the manipulated and responding variable)3. Hypothesis : ( manipulated variable ) Increase / Decrease, then ( responding variable ) increase / decrease
4. Aim : To investigate the relationship between ( manipulated variable) and (responding variable).
5. Apparatus : Dont Forget meter rule, stop watch etc6. Procedure : Must mention manipulated quantity,must mention method of measuring responding variable.
8. Tabulate data and analyse data : must include UNITS.
7. Data must have at least 5 set.
Diagram 4.1 shows Jason taking a shower on a very cold morning. After the water heater is switched on for a while, he still feels cold.Diagram 4.2 shows that Jason no longer feels cold after the temperature control knobon the heater is turned.
Diagram 4.1 Diagram 4.2
MANIPULATED VARIABLES:
THE ELECTRIC CURRENT
RESPONDING VARIABLES:
THE INCREASE IN TEMPERATURE
CONSTANT VARIABLES:
THE VOLUME OF THE WATER /TIME OF HEATING / LENGTH OF WIRE / DIAMETER OF WIRE
(1 M)(2 M)
THE TEMPERATURE OF THE WATER DEPENDS ON THE ELECTRIC CURRENT
THE ELECTRIC CURRENT AFFECT THE TEMPERATURE OF THE WATEROR(3 M)
THE HIGHER THE ELECTRIC CURRENT, THE HIGHER THE TEMPERATURE OF THE WATER
(4 M)
TO INVESTIGATE THE RELATIONSHIP BETWEEN THE ELECTRIC CURRENT AND THE TEMPERATURE OF THE WATER
(5 M)
BEAKER,
AMMETER ,THERMOMETER, IMMERSION HEATER ,POWER PACK , CONNECTING WIRE,RHEOSTAT,WATER AND STOPWATCH(6 M)
BEAKER RHEOSTATTHERMOMETERIMMERSION HEATERWATERSWITCHAMMETER(7 M)
CONTROL AND MEASURE THE(MV)
RECORD THE INITIAL TEMPERATURE OF THE WATER,0.1SWITCH IS ON AND ADJUST THE RHEOSTAT UNTIL THE AMMETER READING , I = 0.2 A.(8 M)
HOW TO MEASURE THE (RV)
RECORD THE FINAL TEMPERATURE, F AFTER 5 MINUTES BY USING THE STOP WATCH.2 REPEAT3REPEAT THE EXPERIMENT WITH DIFFERENT ELECTRIC CURRENT, 0.3 A, 0.4 A,0.5 A AND 0.6 A .(9 M)(10 M)
I/AINITIAL TEMPERATURE(0 / 0C)FINAL TEMPERATURE(f / 0C)INCREASE IN TEMPERATURE( / 0C)INCREASE IN TEMPERATURE0.10.20.30.40.50.20.30.40.50.6(11 M)
GRAPHI / A / 0C
