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Lesson Title V=IR, Q=IT, P=VI, E=PT Learning Outcomes • Define the quantities in given equations (G-D) • Select equations to calculate quantities(D-B) • Explain potential difference in terms of charge and energy (B-A*) Lesson Title VIR,QIT,PVI,EPT Learning Outcomes Define the quantities in given equations (G-D) Select equations to calculate quantities(D-B) Explain potential difference in terms of charge and energy (B-A*) Define the following: V I R Q I T P V I E P T Lesson Title VIR,QIT,PVI,EPT Learning Outcomes Define the quantities in given equations (G-D) Select equations to calculate quantities(D-B) Explain potential difference in terms of charge and energy (B-A*) Example: V is voltage and is measured in volts. The volt tells you how much energy each amount of charge has. Energy is measured in joules and charge is measured in coulombs. This means the volt is the amount of joules for every coulomb. Volts = joules per coulomb Lesson Title VIR,QIT,PVI,EPT Learning Outcomes Define the quantities in given equations (G-D) Select equations to calculate quantities(D-B) Explain potential difference in terms of charge and energy (B-A*) I is current, how many charges (Q) flow per second. It is measured in amperes, shortened to amps (A). Lesson Title VIR,QIT,PVI,EPT Learning Outcomes Define the quantities in given equations (G-D) Select equations to calculate quantities(D-B) Explain potential difference in terms of charge and energy (B-A*) R is resistance, it can be used to control the size of the current in a circuit. It is measured in ohms. The electrons feel a resistive force as they try to move through a circuit. Lesson Title VIR,QIT,PVI,EPT Learning Outcomes Define the quantities in given equations (G-D) Select equations to calculate quantities(D-B) Explain potential difference in terms of charge and energy (B-A*) Q is charge and is measured in coulombs (C). It is a measure of how much charge something has. An electron has a charge of -1.6x10-19 C. Charge can be positive or negative. Lesson Title VIR,QIT,PVI,EPT Learning Outcomes Define the quantities in given equations (G-D) Select equations to calculate quantities(D-B) Explain potential difference in terms of charge and energy (B-A*) T is measured in seconds (s). Lesson Title VIR,QIT,PVI,EPT Learning Outcomes Define the quantities in given equations (G-D) Select equations to calculate quantities(D-B) Explain potential difference in terms of charge and energy (B-A*) P is power. It is measured in Watts (W) or Joules per second (J/s or Js-1). It is the rate of flow of energy. Lesson Title VIR,QIT,PVI,EPT Learning Outcomes Define the quantities in given equations (G-D) Select equations to calculate quantities(D-B) Explain potential difference in terms of charge and energy (B-A*) E is measured in Joules (J). It is a measure of the capacity of something to do work.