Thermal Capacity & Insulation

Test yourself

Uses of Energy Transfer

Conduction, convection, and radiation are used a lot in everyday life.

Solar panels

The solar panels that generate electricity are dark so that they can absorb the maximum amount of the sunlight hitting them.

Radiators

Radiators are used for heating.
A radiator’s primary way of heating a room is actually convection.
If the primary way was radiation, then they should be painted black, as this is the colour that best emits radiation.

Vacuum flasks

A vacuum flask keeps drinks hot or cold.
Outside of the container, there is a vacuum layer (with no air in) surrounded by walls lined with silver.
There aren’t any particles in the vacuum layer, so heat cannot be lost to the environment via conduction or convection.
The silvered walls are good reflectors and poor emitters of heat. This also reduces the heat transferred by radiation.

1Biology

1.1Practicals

1.1.1Microscope & Bacteria

1.1.2Bacteria

1.1.3Osmosis Tests

1.1.4Osmosis & Food Tests

1.1.5Enzymes

1.1.6Enzymes 2

1.1.7Photosynthesis & Plant Responses

1.1.8Photosynthesis Experiments

1.1.9Reaction Time

1.1.10Quadrats

1.1.11Decay

2Chemistry

2.1Practicals

2.1.1Salts

2.1.2Neutralisation

2.1.3Titration

2.1.4Electrolysis

2.1.5Electrolysis 2

2.1.6Rate of Reaction

2.1.7Rate of Reaction 2

2.1.8Chromatography

2.1.9Identifying Gases

2.1.10Identifying Gases 2

2.1.11Identifying Ions

2.1.12Carbonates, Halides & Sulfates

2.1.13Flame Emission Spectroscopy

2.1.14Water Purification

2.1.15Water Purification 2

3Physics

3.1Practicals

3.1.1Specific Heat Capacity

3.1.2Thermal Capacity & Insulation

3.1.3Latent Heat

3.1.4Resistance & Current

3.1.5Resistance & Current 2

3.1.6Density

3.1.7Density 2

3.1.8Force & Extension - Springs

3.1.9Waves - Ripple Tank

3.1.10Light

3.1.11Light Reflection & Refraction

3.1.12Radiation

3.1.13Radiation 2

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