Density can be calculated by Density =
Mass x Volume
The unit used for measuring density is...
None of these
In gases, the particles are...
Moving less rapidly than they are in a liquid
Moving with the same energy as they would in a liquid
Moving more rapidly than they are in the liquid
In liquids, the particles are...
Moving less rapidly than they are in the solid state
Moving with the same energy as they would in any other state
Moving more rapidly than they are in the solid state
On a heating and cooling graph, what does the start of a horizontal line represent?
The start of a change of state
The end of a change of state
Which of these formulae is used to work out the energy required for a change of state?
E = (m x L)² [energy = (mass x specific latent heat)²]
E = L / m [energy = specific latent heat / mass]
E = m x L [energy = mass x specific latent heat]
E = m / L [energy = mass / specific latent heat]
A temperature change involves a gain or loss of kinetic energy of particles
A state change involves particles gaining or losing potential energy
How do you measure the density of an irregular shaped solid object?
Measure the dimensions with a ruler, in order to calculate volume. Measure the mass. Use to calculate density
Use a eureka can to find the volume, measure the mass. Use to calculate the density.
Measure the density on the balance.
If two objects have identical shape and size, how can you tell if the density is the same?
The density is the same because the size is the same
You need to measure the mass to see if the mass is also the same
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