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highland high school chemistry academic language development energy define the following terms on your vocabulary cards: vocab word : energy definition from book own definition picture / diagram/ formula and calculation example: vocab word : potential energy definition from book own definition picture / diagram/ formula and calculation example: vocab word : kinetic energy definition from book own definition picture / diagram/ formula and calculation example: vocab word : chemical bond energy definition from book own definition picture / diagram/ formula and calculation example:
Energy is the ability to do work. Potential energy is stored energy due to position or state. Kinetic energy is energy of motion. Chemical - bond energy is the energy required to break a chemical bond. For the picture/diagram/formula and calculation example part: For energy in general, the total energy of a system can be the sum of potential and kinetic energy. For potential energy, a book on a shelf has gravitational potential energy given by $U = mgh$ (where $m$ is mass, $g$ is gravitational acceleration, and $h$ is height). For kinetic energy, a moving car has kinetic energy $K=\frac{1}{2}mv^{2}$ (where $m$ is mass and $v$ is velocity). For chemical - bond energy, when calculating the energy change in a chemical reaction, we consider the bond - energies of reactants and products.
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Vocab Word: Energy
Definition From Book: The ability to do work or cause change.
Own Definition: The capacity for action or causing transformation.
Picture / Diagram/ Formula and Calculation Example: Total energy of a system $E = U+K$
Vocab Word: Potential Energy
Definition From Book: Stored energy that depends upon the relative position of various parts of a system.
Own Definition: Energy held in reserve because of position or state.
Picture / Diagram/ Formula and Calculation Example: A book on a shelf: $U = mgh$
Vocab Word: Kinetic Energy
Definition From Book: Energy that an object possesses due to its motion.
Own Definition: Energy of a moving object.
Picture / Diagram/ Formula and Calculation Example: A moving car: $K=\frac{1}{2}mv^{2}$
Vocab Word: Chemical Bond Energy
Definition From Book: The energy required to break a chemical bond.
Own Definition: Energy associated with chemical bonds.
Picture / Diagram/ Formula and Calculation Example: In a reaction $A - B+C - D
ightarrow A - C + B - D$, calculate $\Delta H$ using bond - energies of reactants and products.