Year 10 Particles

Which of these options correctly describes particles in a solid?

• The are far apart

• They move quickly

• The are well ordered

• They have weak forces between them

Which one of these statements describes particles in a liquid?

• They are in neat rows

• They are all touching

• They are vibrating

• They are held together by strong forces

Which statement describes the particles in a gas state?

• They have no forces between them

• They are all touching

• They are well ordered

• They are vibrating

Look at the heating curve in the diagram showing the temperature of ice as it is heated.

What is happening between 20 and 100 seconds?

• The temperature is rising

• The ice is melting

• Particles are gaining more kinetic energy

• A gas is being formed

The energy needed to change 1Kg of a substance from a liquid to a gas is called the specific....

• heat capacity

• latent heat of fusion

• latent heat of vaporisation

• energy

What would be the same if the same substance was shown in the gas state?

• How close particles are

• Size of the particles

• Number of particles in the box

Which two measurements are needed to find the density of an object?

• Temperature and mass

• Mass and surface area

• Mass and volume

• Area and pressure

The density of gases are lower than liquids and solids of a substance. Why is this?

• The particles are closer together.

• The particles are heavier

• The particles are smaller

• The particles are further apart

The kinetic energy and potential energy of particles in a substance makes up its...

• Internal Energy

• Specific Heat Capacity

• Specific Latent Heat of fusion

• Specific Latent Heat of vaporisation

Which is these statements is true?

• The change from liquid to solid is called melting

• When 50g of liquid boils, you get 50g of gas

• Freezing is a chemical change

• Volume of liquids are measured in m²