Potential difference and resistance

• What flows around a circuit?

  Current
• What do charges transfer as they struggle against resistance?

  Energy
• What is potential difference defined as?

  Energy transferred per unit charge
• How is potential difference expressed in terms of energy?

  Energy transferred per coulomb of charge
• What does the potential difference represent in a circuit?

  The energy transferred between two points
• How can you calculate energy transferred in joules?

  Using the formula: energy = charge x potential difference
• What is the formula for energy transferred?

  Energy = Charge x Potential Difference
• What does the potential difference across a component indicate?

  The amount of energy transferred by that component
• What is another term for potential difference?

  Voltage
• What is the relationship between voltage, current, and resistance?

  Voltage = Current x Resistance
• If the potential difference is 6.0 V and resistance is 4.0 Ω, what is the current?

  1.5 A
• How does resistance change with temperature?

  Resistance increases with temperature
• What happens when an electrical charge flows through a component?

  It works against resistance
• What is the energy transferred when a charge flows through a component?

  It is the work done by the charge
• What is the unit of resistance?

  Ohm (Ω)
• What does a higher resistance indicate about a component?

  It requires more energy to push current
• If you have a circuit with a resistance of 4.0 Ω and a potential difference of 6.0 V, how do you find the current?

  Use the formula: I = V / R
• How can you change the current in a circuit?

  By changing the resistance or voltage
• What does the term "energy transferred" refer to in a circuit?

  The work done by the electrical charge
• What is the formula for calculating current?

  Current = Voltage / Resistance
• If the potential difference is 6.0 V and the resistance is 4.0 Ω, what is the current flowing through the circuit?

  1.5 A
• What does an increase in resistance do to the current in a circuit?

  It decreases the current
• How does temperature affect resistance in a circuit?

  Resistance typically increases with temperature
• What is the relationship between voltage, current, and resistance in Ohm's Law?

  Voltage = Current x Resistance
• What does a potential difference of 6.0 V across a resistor indicate?

  It indicates the energy per unit charge
• If you rearrange Ohm's Law, what formula do you get for current?

  I = V / R
• How can you calculate the resistance of a component from voltage and current?

  Resistance = Voltage / Current
• What does the term "work done" refer to in the context of electrical energy?

  It refers to energy transferred by charges
• What is the unit of voltage?

  Volt (V)
• What happens to the current if the resistance in a circuit increases?

  The current decreases
• How does the potential difference relate to the energy transferred in a circuit?

  It indicates how much energy is transferred
• What is the formula for calculating voltage?

  Voltage = Current x Resistance
• What does a higher voltage indicate in a circuit?

  More energy is available per charge
• If you have a voltage of 6.0 V and a resistance of 4.0 Ω, what is the current?

  1.5 A
• How can you determine the resistance of a component using voltage and current measurements?

  By using the formula: R = V / I
• What does the term "energy transferred" mean in electrical circuits?

  The work done by electrical charges
• What is the unit of current?

  Ampere (A)
• What happens to the current if the voltage increases while resistance remains constant?

  The current increases
• How does resistance affect the flow of current in a circuit?

  Higher resistance reduces the current flow
• What does a potential difference of 6.0 V across a resistor indicate?

  It indicates energy per unit charge