Required Practicals

Question 1

Density practical (regularly shaped object) equipment

Answer 1

• 30cm ruler in mm
• Digital balance
• A selection of regularly shaped object

Question 2

Method of density practical (regularly shaped object)

Answer 2

1. Measure the length, width and height of he object using the ruler
2. Calculate the volume of the object using - volume = length x width x height
3. Measure the mass of the object using the balance
4. Calculate the density using - density = mass/volume
5. Repeat for the other regular objects

Question 3

Density practical (irregularly shaped object) equipment

Answer 3

• Digital balance
• Eureka can
• Measuring cylinder
• Beaker of water and an extra empty beaker
• Selection of irregularly shaped objects

Question 4

Method of density practical (irregularly shaped objects)

Answer 4

1. Fill eureka with water and allow excess water to drain.
2. Place empty measuring cylinder under sprout of can
3. Submerge object in can and collect displaced water
4. Record the volume of the displace water which is the volume of the object
5. Measure the mass of the object using the balance
6. Calculate the density using - density = mass/volume
7. Repeat for he irregular objects

Question 5

Thermal insulation practical equipment

Answer 5

• Boling tubes and rack
• Thermometer
• Stopwatch
• Kettle
• Thermometers in bungs
• Sheets of insulating material

Question 6

Thermal insulation of different materials of insulator method

Answer 6

1. Cover boiling tubes in different insulations.
2. Add boiling water to tubes
3. Place thermometers in water
4. Make sure top is sealed to prevent evaporation
5. Wait for the highest temperature reached
6. Record temperature as it falls at regular intervals
7. Repeat with different insulating materials
8. Plot graph of temperature against time

Question 7

Thermal insulator of different thicknesses method

Answer 7

1. Wrap five beakers in varying thicknesses of one material
2. Fill each beaker with warm water, record the initial temperature and cover each beaker with paper lids.
3. Repeat the experiments as before, measuring the temperature every 3 minutes
4. Record your results and calculate the change in temperature for each beaker (initial temperature - final temperature).

Question 8

Thermal insulator of different thicknesses experiment equipment

Answer 8

1. Five beakers
2. An insulating mateial
3. Kettle with water
4. Thermometer