Electric Circuits Recap

What are the charge carriers in an electric circuit?

• Neutral Photons

• Negative Electrons

• Positive Protons

• Positive Electrons

Volts are a measure of.....

• Resistance

• Voltage

• power consumption
• current flow

When resistance increases in a series circuit.....

• Voltage decreases.
• Current increases

• Power remains constant.
• Current decreases

When you add more components to a series circuit, the current will ....

• stay the same
• increase
• oscillate
• decrease

What is "Energy per unit charge"

• Power (P)
• Voltage (V)
• Resistance (R)
• Current (I)

The equation that links current, resistance, and voltage is.....

• V = R / I
• I = V + R
• R = V - I
• V = I * R

When a thermistor gets hotter, the current will .....

• decrease
• remain the same
• it depends

• increase

When light intensity increases on an light dependant resistor (LDR), the current will .....

• decrease
• increase
• remain the same
• It depends

What is the difference between a cell and a battery

• A cell is a single unit; a battery is a collection of cells.
• A cell can hold more charge than a battery.
• A battery is always rechargeable, while a cell is not.
• Cells are used in solar panels, while batteries are used in cars.

What's the name of the component in the picture

• Thermistor

• Variable Resistor

• Fuse

• Fixed Resistor