Section 5 (Solids, Liquids and Gases)
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| What is the formula for density? | Density = mass/volume (p = m/v)
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| What is density usually measured in? | kg/m3 OR g/cm3
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| What do we use to measure the volume of an irregular shape? | A eureka can
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| How do we measure the mass of an object? | Place it on a balance
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| To convert g/cm3 to kg/m3 what must be done | Multiply g/cm3 by 1000
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| If a material is more dense than water, what will happen? | It will sink
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| What is the formula for pressure? | Pressure = force/area (p = F/A)
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| What is pressure measured in? | Pascals (Pa)
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| What is pressure in gases and liquids called? | Fluid pressure
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| Pressure on an object in a liquid is exerted ___________ across the whole object | evenly
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| Pressure increases with _________ | depth
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| Pressure depends upon what 2 things when acting on an object submerged in a liquid? | 1. Depth
2. Density
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| What is the equation for pressure in liquids and gases? | Pressure = height x density x gravitational field strength
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| What are the 3 main assumptions made by the particle model? | Particles are:
- Small
- Inelastic
- Spheres
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| If a gas is heated in an expandable container, what will happen? | The gas' volume will increase
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| If a gas is heated in a fixed container, what will happen? | The pressure will increase
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| Define internal energy | The total energy stored by the particles making up a substance or system
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| How do temperature and internal energy relate? | Temperature is a measure of the total internal energy of a system
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| Define specific heat capacity | The amount of energy needed to raise the temperature of 1kg of a substance by 1 degree C
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