Electric Current and Potential Difference

Which word means how hard it is for electrons to flow?

• Current
• Voltage
• Resistance
• Power

If the Voltage is increased and the resistance stays the same, Current will

• Increase
• Decrease
• Stay the same
• Not enough info

If the Voltage stays the same and Resistance is increased, Current will 

• Increase
• Decrease
• Stay the same
• Not enough info

What is current measured in?

• Ω (Ohms)
• V (Volts)
• A (Amps)
• W (Watts)

In a series circuit, which of the following will vary based on the resistor?

• Power
• Voltage
• Current
• None of the above

What is resistance measured in?

• Ω (Ohms)
• V (Volts)
• A (Amps)
• W (Watts)

What is voltage?

• The flow of protons

• The number of charged particles that pass each second
• The difference in potential energy of charged particles
• The rate at which energy is being transformed

Tags

NGSS.HS-PS3-2

What voltage is needed to produce 2A of current through a 10Ω resistor?

• 20V
• 0.2V
• 5V
• 2V

Battery cells are connected in series to _______

• Increase voltage output
• Decrease voltage output
• Increase current capacity
• Decrease current capacity

Which equation can be rearranged to calculate the the electric current given?

• I = Q ÷ t

• Q = It

• I = Qt

• I = t ÷Q