1. What is voltage? Voltage is the __________.
A. flow of protons
B. rate at which energy is being transformed
C. difference in potential energy of charged particles
D. number of charged particles that pass each second

2. What is electric current? It is the _________.
A. resistance C. difference in potential
B. light Emitting Diode D. number of charged particles that pass a point each sound
Lesson Electricity: Current,
Voltage and Resistance

3. What happens if we give 230V supply to a bulb from both sides?
A. There is no light. C. It glows very brightly.
B. The bulb will explode. D. The brightness of the light will vary over time.

4. How many Volts will it take to push 1 Amp through a resistance of 1 Ohm?
A. 1 volts
B. 5 volts
C. 10 volts
D. 48 volts

5. If the current through a circuit is 2 A and the resistance of a light bulb in the circuit is10 ohms, what is the voltage difference across the light bulb?
A. 0.2 V
B. 5 V
C. 12 V
D. 20 V

6. Which word means how hard it is for electrons to flow?
A. current B. power C. resistance D. voltage

7. If the Voltage is increased and the resistance stays the same, what happens to the current?
A. increase B. decrease C. stays the same D. not enough information

8. Which of the following CORRECTLY describes a current? It is the _________.
A. amount of electric charge of an object
B. rate at which electric charge pass a given point
C. buildup of electric charge on the surface of an object
D. amount of work to move a unit of electric charge between two points

9. Which of the following BEST describes an electric voltage? It is the ___________.
A. rate at which electric charges move
B. amount of electrical energy contained inside a battery
C. work needed to move an electric charge between two points
D. shock that a person experiences when he or she comes in contact with electricity

10. Plastic and wood are poor conductors of electric current while copper and steel are good conductors. Which combination of materials will supply the most amount of resistance to an electric current?
A. wood and steel C. plastic and wood
B. copper and steel D. plastic and copper