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+T5A – Current and voltage: terminology and units, conductors and insulators, alternating and direct current 
+
+- [[T5A01]] (D)
+Electrical current is measured in which of the following units? #card
+	- A. Volts
+	- B. Watts
+	- C. Ohms
+	- D. Amperes
+
+- [[T5A02]] (B)
+Electrical power is measured in which of the following units? #card
+	- A. Volts
+	- B. Watts
+	- C. Watt-hours
+	- D. Amperes
+
+- [[T5A03]] (D)
+What is the name for the flow of electrons in an electric circuit? #card
+	- A. Voltage
+	- B. Resistance
+	- C. Capacitance
+	- D. Current 
+
+- [[T5A04]] (C)
+What are the units of electrical resistance? #card
+	- A. Siemens
+	- B. Mhos
+	- C. Ohms
+	- D. Coulombs
+
+- [[T5A05]] (A)
+What is the electrical term for the force that causes electron flow? #card
+	- A. Voltage
+	- B. Ampere-hours
+	- C. Capacitance
+	- D. Inductance
+
+- [[T5A06]] (A)
+What is the unit of frequency? #card
+	- A. Hertz
+	- B. Henry
+	- C. Farad
+	- D. Tesla
+
+- [[T5A07]] (B)
+Why are metals generally good conductors of electricity? #card
+	- A. They have relatively high density
+	- B. They have many free electrons
+	- C. They have many free protons
+	- D. All these choices are correct
+
+- [[T5A08]] (B)
+Which of the following is a good electrical insulator? #card
+	- A. Copper
+	- B. Glass
+	- C. Aluminum
+	- D. Mercury
+
+- [[T5A09]] (C)
+Which of the following describes alternating current? #card
+	- A. Current that alternates between a positive direction and zero
+	- B. Current that alternates between a negative direction and zero
+	- C. Current that alternates between positive and negative directions
+	- D. All these answers are correct
+
+- [[T5A10]] (C)
+Which term describes the rate at which electrical energy is used? #card
+	- A. Resistance
+	- B. Current
+	- C. Power
+	- D. Voltage
+
+- [[T5A11]] (D)
+What type of current flow is opposed by resistance? #card
+	- A. Direct current
+	- B. Alternating current
+	- C. RF current
+	- D. All these choices are correct
+
+- [[T5A12]] (D)
+What describes the number of times per second that an alternating current makes a complete cycle? #card
+	- A. Pulse rate
+	- B. Speed
+	- C. Wavelength
+	- D. Frequency