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Physics

Section 5 (Solids, Liquids and Gases)

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