Circuits and Density

• A circuit is a closed loop that electrons travel through
• A cell is a energry source that makes charge flow in a circuit
• Current is the flow of electrical charge measured in amps
• voltage is the measure of energy around a circuit measured in volts
• Resistance is the measure of how difficult it is for a current to flow measured in ohms
• A series circuit is a circut with one loop
• A parallel circuit is a circuit with more than one loop
• Density is the measure of how much mass something has in a certain volume
• The formula for density is density = mass/volume
• The formula for resistance is resistance = voltage/current