1. Physical Science Spring Review Electricity and Magnetism

2. Electric current is produced as ________ flow from a negative area to a positive area. a. electrons b. protons c. photons d. neutrons

3. Electric current is produced as ________ flow from a negative area to a positive area. a. electrons b. protons c. photons d. neutrons

4. Which of the following describes a material thorough which electricity does not flow? a. metals b. conductors c. water d. insulators

5. Which of the following describes a material thorough which electricity does not flow? a. metals b. conductors c. water d. insulators

6. Which of the following is NOT a good electric insulator? a. plastic b. glass c. paper d. wood e. water

7. Which of the following is NOT a good electric insulator? a. plastic b. glass c. paper d. wood e. water

8. What three elements are attracted to magnets?

9. iron, cobalt, nickel

10. Which is NOT a property of a permanent magnet? a. the atoms are lined up to form domains b. they attract iron containing object c. they have a north and south pole d. they only produce magnetic fields when electric current is running through them

11. Which is NOT a property of a permanent magnet? a. the atoms are lined up to form domains b. they attract iron containing object c. they have a north and south pole d. they only produce magnetic fields when electric current is running through them

12. When current is run through a copper coil which of the following is produced? a. mechanical energy b. electric field c. magnetic field d. parallel circuit

13. When current is run through a copper coil which of the following is produced? a. mechanical energy b. electric field c. magnetic field d. parallel circuit

14. A circuit breaker or a ________ is a safety device that ensures that will break the circuit if too much current is detected? a. fuse b. bulb c. resistor d. transformer

15. A circuit breaker or a ________ is a safety device that ensures that will break the circuit if too much current is detected? a. fuse b. bulb c. resistor d. transformer

16. What is the equation for Ohms Law?

17. V = IR voltage = current x resistance

18. An electric heater is connected to a 120 volt line, and it uses 10 amps of current. What is the resistance used by the heater?

19. An electric heater is connected to a 120 volt line, and it uses 10 amps of current. What is the resistance used by the heater? V = IR 120 V = 10 A x R = 12 