Introduction to Physics

16. Ohm’s law relates which three quantities?
a) Voltage, power, and current
b) Resistance, voltage, and power
c) Voltage, current, and resistance
d) Voltage, energy, and power

17. The phenomenon of an electric current induced by a changing magnetic field is called:
a) Refraction
b) Reflection
c) Resistance
d) Electromagnetic induction

18. The unit of electric power is the:
a) Joule
b) Watt
c) Ohm
d) Ampere

19. Which type of energy is associated with the motion of electrons?
a) Mechanical energy
b) Thermal energy
c) Electrical energy
d) Potential energy

20. The process of energy transfer through direct contact between particles is called:
a) Conduction
b) Convection
c) Radiation
d) Reflection