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Essential Question Understanding how does heat affect a system?
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Essential Question Understanding how does heat affect a system?

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So what is heat? Heat is the amount of thermal energy. For example, the sparks from a sparkler are at around 800°C but do not burn your skin. However, a hot cup of tea at around 100°C will burn your hand badly. This is because the tea contains more heat energy, even though it is cooler.
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So what is heat? Heat is the amount of thermal energy. For example, the sparks from a sparkler are at around 800°C but do not burn your skin. However, a hot cup of tea at around 100°C will burn your hand badly. This is because the tea contains more heat energy, even though it is cooler.

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Nature of Energy Energy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it as wind.
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Nature of Energy Energy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it as wind.

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Nature of Energy What is energy that it can be involved in so many different activities? Energy can be defined as the ability to do work. If an object or organism does work (exerts a force over a distance to move an object) the object or organism uses energy.
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Nature of Energy What is energy that it can be involved in so many different activities? Energy can be defined as the ability to do work. If an object or organism does work (exerts a force over a distance to move an object) the object or organism uses energy.

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Forms of Energy The five main forms of energy are: Heat Chemical Electromagnetic Nuclear Mechanical
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Forms of Energy The five main forms of energy are: Heat Chemical Electromagnetic Nuclear Mechanical

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Nature of Energy Because of the direct connection between energy and work, energy is measured in the same unit as work: joules (J). In addition to using energy to do work, objects gain energy because work is being done on them.
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Nature of Energy Because of the direct connection between energy and work, energy is measured in the same unit as work: joules (J). In addition to using energy to do work, objects gain energy because work is being done on them.

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The internal motion of the atoms is called heat energy, because moving particles produce heat. Heat energy can be produced by friction. Heat energy causes changes in temperature and phase of any form of matter. Energy of the heat IN an object
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The internal motion of the atoms is called heat energy, because moving particles produce heat. Heat energy can be produced by friction. Heat energy causes changes in temperature and phase of any form of matter. Energy of the heat IN an object

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States of Energy The most common energy conversion is the conversion between potential and kinetic energy. All forms of energy can be in either of two states: Potential Kinetic
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States of Energy The most common energy conversion is the conversion between potential and kinetic energy. All forms of energy can be in either of two states: Potential Kinetic

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States of Energy: Kinetic and Potential Energy Kinetic Energy is the energy of motion. Potential Energy is stored energy.
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States of Energy: Kinetic and Potential Energy Kinetic Energy is the energy of motion. Potential Energy is stored energy.

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Kinetic Energy The energy of motion is called kinetic energy. The faster an object moves, the more kinetic energy it has. The greater the mass of a moving object, the more kinetic energy it has. Kinetic energy depends on both mass and velocity.
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Kinetic Energy The energy of motion is called kinetic energy. The faster an object moves, the more kinetic energy it has. The greater the mass of a moving object, the more kinetic energy it has. Kinetic energy depends on both mass and velocity.

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Potential Energy Potential Energy is stored energy. Stored chemically in fuel, the nucleus of atom, and in foods. Or stored because of the work done on it: Stretching a rubber band. Winding a watch. Pulling back on a bow’s arrow. Lifting a brick high in the air.
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Potential Energy Potential Energy is stored energy. Stored chemically in fuel, the nucleus of atom, and in foods. Or stored because of the work done on it: Stretching a rubber band. Winding a watch. Pulling back on a bow’s arrow. Lifting a brick high in the air.

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Gravitational Potential Energy Potential energy that is dependent on height is called gravitational potential energy.
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Gravitational Potential Energy Potential energy that is dependent on height is called gravitational potential energy.

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Potential Energy Energy that is stored due to being stretched or compressed is called elastic potential energy.
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Potential Energy Energy that is stored due to being stretched or compressed is called elastic potential energy.

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The Law of Conservation of Energy Energy can be neither created nor destroyed by ordinary means. It can only be converted from one form to another. If energy seems to disappear, then scientists look for it – leading to many important discoveries. All images used are from Microsoft Office ©Copyright 2014-all rights reserved www.cpalms.org
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The Law of Conservation of Energy Energy can be neither created nor destroyed by ordinary means. It can only be converted from one form to another. If energy seems to disappear, then scientists look for it – leading to many important discoveries. All images used are from Microsoft Office ©Copyright 2014-all rights reserved www.cpalms.org

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