Solids liquids and gases physics gcse

particle motion in gases

The speed of the particles in a gas increases as the temperature increases. The main difference is that the particles in a liquid are free to move past each other, which is why liquids flow and take up the shape of the container in which they are placed.

density of a liquid gcse

Which states of matter contract when you cool them? A solid has a fixed shape. This is the first of eight quizzes on that topic and it looks at the kinetic theory of matter and how the particles in solids, liquids and gases are affected by heat energy.

It will expand.

Pressure in gases gcse

What happens to the particles of water vapour as it changes from a gas into a liquid to form a film of water on the inside surface of a cold window? A solid cannot be compressed because the particles are close together. What is the Structure of a Liquid? What are the Properties of a Liquid? When the particles of the water vapour hit the window, they stick to it The particles lose energy to the cold surface, slow down and become closer together The particles clump together because of the light coming through the window, forming water The particles speed up, forming water droplets When any gas is cooled its particles slow down and move closer together forming a liquid - they condense. The particles are close together and cannot move around so the shape of a solid is fixed. What are the Properties of a Solid? The speed of the particles in a gas increases as the temperature increases. Only gases Liquids and gases All of them As the thermal energy is removed, the particles move less and can pack together more closely. This causes the pressure of a gas to increase as the temperature increases. A solid has a regular arrangement of particles atoms , ions or molecules. A gas will fill the whole volume of its container. What is the Structure of a Solid? A gas has no order, its particles are arranged at random. In liquids the particles are only a little further apart than in solids, so liquids can't be compressed either.

What is the Structure of a Solid? Because of this, solids have definite shapes which they will keep - unless they are broken or cut.

Solid liquid gas diagram

A solid is said to have long range order which means that the regular arrangement of particles keeps repeating itself over and over for a huge number of particles. Brown observed that pollen grains floating on water moved around in random directions. Water is a bit odd - it contracts until you get to 4oC then it starts to expand. Only gases Liquids and gases All of them As the thermal energy is removed, the particles move less and can pack together more closely. This causes the pressure of a gas to increase as the temperature increases. A liquid is said to have short range order which means that the arrangement of particles only repeats itself for a small number of particles. A gas will fill the whole volume of its container. The kinetic theory of matter is one of the models that scientists use to help them to make sense of the world around them. What is the Structure of a Gas? A liquid has an arrangement of particles that are close together like a solid but the particles are free to move because the force of attraction between the particles is weaker than it is in a solid. What is the Structure of a Solid?

This movement was something that was first noted in by botanist Robert Brown. A liquid will flow to take the shape of its container.

states of matter gcse physics

Only gases Liquids and gases All of them As the thermal energy is removed, the particles move less and can pack together more closely. As it forms ice, it expands a lot, then, when you cool ice down, it contracts exactly as you would expect 2.

What will a substance do when it is heated? The particles in a gas are so far apart that there is no force of attraction between them. What are the Properties of a Liquid?

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Edexcel IGCSE Physics Topic 5: Solids, Liquids and Gases Revision