Particle model

What is the equation for density?

What is the volume of a cube which has sides 2cm long?

What is a displacement can used for?

• Measuring the mass of irregular shapes

• Measuring the mass of regular shapes

• Measuring the volume of irregular shapes

What is temperature a measure of?

• The average weight of the molecules

• The average kinetic energy of the molecules

• The average size of the molecules

Which of these has the largest total amount of internal (thermal) energy?

• A teaspoon of hot water

• A mug of hot water

• A swimming pool of luke warm water

How do the particles in a solid move?

• Randomly in all directions

• Vibrate around a fixed point

• They roll over one another

What occurs when a liquid aborbs energy gradually from its surroundings to change into a gas?

• Evaporation

• Boiling

• Condensation

Which part of a cooling curve shows the changes of state?

• The steepest lines

• The vertical lines

• The horizontal lines

What causes the pressure that a gas exerts?

• Collisions with the particles on the walls of the container

• The charge of the particles

• The size of the particles