cameroon gce A level June 2024 physics 3
cameroon gce A level June 2024 physics 3
GROUP 1 >
1 » *r
;
MAINSTREAM . f .
You are provided with a number of resistors connected in a chain: One of the multimeters shall be used as a
voltmeter and the other as a milliameter. The voltmeter shall be set to the 20 V range and the miliameter to the
200 mA when in use.
I .
i
2. Measure the terminal p.d. of the battery provided and record its value, V0= (2 marks)
Connect the battery, the resistor chain and the milliammeter in series.
Connect the voltmeter across the battery terminals with the positive lead connected to the positive
terminal of the battery.
Use the open lead of the milliammeter (red lead) as a switch and make a closed circuit by connecting
it to the second junction of the resistor chain. Then record the voltmeter and milliammeter readings V
and I respectively.
3.
4.
5.
(1 mark)
(1 mark)
Move the contact to the third and to the rest of the junctions in succession and repeat step 6 to obtain
other values of currents and corresponding voltages. Record your values in a table
V =
1 =
6.
t
Table of Data (20 marks)
Station 2: Thermal Physics
You are provided with two beakers, a measuring cylinder, a thermometer, about 50 g of a liquid x at room temperature
and 50 ml of hot water at about 70°C. Determine the specific heat capacity of liquid x.
Diagram
Station 3: Simple harmonic motion
– You are provided with a helical spring, a standard mass, a stop watch and a clamp and stand. Determine the
period of oscillation of the mass spring oscillator in the vertical plane.
Diagram
Station 4: Properties of matter < •'< s > : * .5 *
^ o« are provided with a stopwatch, a ball bearing tied to a long thin string, three liquids A, B, and C in 3 tall
measuring cylinders. Use this apparatus to classify the liquids in order of increasing viscosity.
Diagram
GROUP 2
MAINSTREAM
You arc provided with a number of resistors connected in a chain and another resistor X.
shall be used as a voltmeter and the other as a milliameter. The voltmeter shall be
miliameter to 200 mV range when in use.
Measure the terminal p.d. of the battery provided and record its value,
Connect the battery, the resistor chain, the resistor X and the milliammeter i
Connect the voltmeter across X.
Use the open lead of the milliammeter (red lead) as a switch and make a closed circuit by connecting
it to the second junction of the resistor chain. Then record the voltmeter and milliammeter readings V
and I respectively .
One of the multimeters
set to the 20 V range and
Vo = (2 marks)
n series.
V = (lmark)
1 = ( lmark)
Move the contact to the third and to the rest of the junctions in succession and repeat step 6’ to obtain
other values of currents and corresponding voltages. Record your values in a table
Table of Data (20 marks)
