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Change of state

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  • How does adding or taking away heat energy cause changes in matter?

  • How does adding or taking away heat energy cause changes in matter? At the molecular level, there are three states of matter: Solid, liquid and gas. The molecules of a solid are extremely slow moving, the molecules of a liquid are slightly faster and the molecules of a gas are very fast.

  • How does thermal energy affect the state of an object?

  • Thermal energy depends on how many particles are present in the object. Energy as heat will be transferred from the warmer object to the cooler object until both objects are at the same temperature. How can heat affect the state of an object? The state of a substance depends on the speed of its particles.

  • What is the difference between thermal energy and heat?

  • Heat is measured in two ways: calories and joules Adding or removing heat from a substance will affect its temperature and thermal heat. Heat however is not the same as the thermal energy and temperature. Thermal energy and temperature are properties of a substance. Heat is the energy involved when these properties change.

  • What happens when heat is transferred from one object to another?

  • Energy as heat will be transferred from the warmer object to the cooler object until both objects are at the same temperature. How can heat affect the state of an object? The state of a substance depends on the speed of its particles.

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