3.1.6

Density

Test yourself

Density

Density is equal to mass divided by volume.

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Density

  • Density is given by ρ=m/V, where the ρ is the greek letter rho, not a p!
  • m is mass, V is volume.
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Upthrust

  • An object floats in a fluid if the density of the object is lower than the density of the fluid.
  • The force that keeps the object afloat is called upthrust.
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Law of Displacement

  • The Law of Displacement says that an object completely submerged in a fluid (like water) will replace an amount of fluid equal to its own volume.

Density - Example

This baby elephant has a higher density than water, so sinks...

Jump to other topics

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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Resistance & Current 2

Density 2