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Note that your final mark will not be saved in the system.
Particle model Typeit
Target Level
4-5
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The properties of an object have a lot to do with how all of the particles that make up that material are arranged. The amount of mass per unit volume is called an object's . How an object's particles are arranged also affects its state - whether it is a solid, a liquid or a gas.
Objects can change state. A change of state between solid and liquid is , and back again is . Liquid to gas is , and gas to liquid is . The change of state from solid to gas is called .
Another important property of an object is its , which is the sum of the kinetic and potential energies of all of its particles.
When an object is heated, two things can happen - the object can change state, or it can heat up. The amount of substance that changes state for a given amount of heating is called its , and the amount that a substance warms up for a given amount of energy is called its .
Pressure is the amount of force exerted by a gas over a given area. For a gas at a constant volume, if temperature increases, the pressure of the gas will . For a gas at a constant temperature, if volume increases, the pressure of the gas will .
Objects can change state. A change of state between solid and liquid is , and back again is . Liquid to gas is , and gas to liquid is . The change of state from solid to gas is called .
Another important property of an object is its , which is the sum of the kinetic and potential energies of all of its particles.
When an object is heated, two things can happen - the object can change state, or it can heat up. The amount of substance that changes state for a given amount of heating is called its , and the amount that a substance warms up for a given amount of energy is called its .
Pressure is the amount of force exerted by a gas over a given area. For a gas at a constant volume, if temperature increases, the pressure of the gas will . For a gas at a constant temperature, if volume increases, the pressure of the gas will .