Required Practicals

Question 1

Specific Heat Capacity

Answer 1

Determine the specific heat capacity of a material.

Question 2

Specific Heat Capacity - Steps.

Answer 2

1. Measure the mass of the block.
2. Put water in the hole with the thermometer.
3. Find the temperature change.
4. Calculate the specific heat capacity.
5. Repeat and calculate the mean.

Question 3

Resistance

Answer 3

Use circuit diagrams to set up an appropriate circuit to investigate how length affects the resistance of an electrical circuit.

Question 4

Resistance - Steps.

Answer 4

1. Set up and use crocodile clips to complete the circuit using the wire.
2. Measure the length of the wire.
3. Record the reading on the ammeter and voltmeter.
4. Calculate the resistance.
5. Repeat steps with different lengths.
6. Plot a graph.

Question 5

V/I Characteristics

Answer 5

Use circuit diagrams to investigate the I-V characteristics of variety a of circuit elements, at constant temperature.

Question 6

V/I Characteristics - Steps.

Answer 6

1. Set up the circuit.
2. Turn the power supply up until the potential difference is 12v.
3. Take the voltmeter and ammeter readings.
4. Calculate the resistance of the lamp at its running temperature.
5. Repeat for different values of potential difference.
6. Plot a graph.

Question 7

Density

Answer 7

Use appropriate apparatus to make and record the measurements needed to determine the densities of regular and irregular solid objects and liquids.

Question 8

Density - Steps.

Answer 8

1. Measure the mass of both objects.
2. Measure the volume of the regular object.
3. Measure the volume of the irregular object (by displacement).
4. Calculate Density.

Question 9

Thermal Insulation

Answer 9

Investigate the effectiveness of different materials as thermal insulators and the factors that may affect the thermal insulation properties of a material.

Question 10

Thermal Insulation - Steps.

Answer 10

1. Put the small beaker inside of the large beaker.
2. Boil water and put 80ml of it in the small beaker.
3. Use a piece of cardboard, with a hole, as a lid for the large beaker
4. Insert the thermometer in the hole.
5. Record the temperature and start the stopwatch.
6. Record the temperature of the water every 3 minutes.
7. Repeat using different materials to fill the space between the large and small beaker.
8. Plot a graph.