Jeopardy Jeopardy PHY101 Chapter 7 Review Study of Electricity By Cheryl Dellai

Study of Electricity BasicsE Field Circuit Elements Equations Problems Potpourri $100 $200 $300 $400

Basics $100 What is the basic unit of charge? ANSWER

Basics $200 Like charges (repel/attract)

ANSWER Basics $300 What is meant by Conservation of Charge?

ANSWER Basics $400 What is Coulomb’s Law?

E Field $100 ANSWER What is the definition of an Electric Field?

ANSWER Electric field lines start on ____ charges and end on ____ charges or infinity. E Field $200

ANSWER E Field $300 The energy per unit charge supplied by a battery is its ________.

E Field $400 ANSWER What kind of charge is at the center of this picture?

Circuit Elements $100 ANSWER What is the definition of conventional current?

Circuit Elements $200 ANSWER What is a battery?

Circuit Elements $300 ANSWER What is a resistor?

Circuit Elements $400 ANSWER Suppose current is flowing in a wire from right to left. Which way do the electrons in the wire move?

Equations $100 ANSWER What is Ohm’s Law?

Equations $200 ANSWER What is the Power Equation?

Equations $300 ANSWER What is the Power Usage equation?

Equations $400 ANSWER Complete Table Use Add, Add Reciprocally R, Same to complete table SeriesParallel Charge/Current Voltage Resistance

Problems $100 ANSWER The light bulbs in this circuit are connected in _______.

Problems $200 ANSWER The light bulbs in this circuit are connected in ____.

Problems $300 ANSWER A battery operating a large flashlight produces a current of 2 amperes in a light bulb that has a resistance of 4 ohms. The voltage of the battery is_______.

Problems $400 ANSWER Two charged bodies separated by a distance d exert an electrical force on each other. The distance d is doubled. The electrical force on each body is now ____ times the original force.

Potpourri $100 ANSWER Name 2 types of current.

Potpourri $200 ANSWER What does a transformer do?

Potpourri $300 ANSWER If the temperature of a wire increases, its resistance _________.

Potpourri $400 ANSWER Lightning is dangerous to humans because lightning strokes have ________

Basics $100 Answer Back to Jeopardy What is the basic unit of charge? Coulomb Basic Charges Proton p+ = +1.6* C Electron e- = - 1.6* C

Basics $200 Answer Back to Jeopardy Like charges (repel/attract). Repel

Basics $300 Answer Back to Jeopardy Conservation of Charge Net charge of universe is zero.

Basics $400 Answer Back to Jeopardy What is Coulomb’s Law? F = k E q 1 q 2 /d² k E =9.0 *10 9 N*m²/C²

E Field $100 Answer Back to Jeopardy What is the definition of an Electric Field? E=F/  q  E = k E q/d² for a pt charge SI Unit is N/C or Volts/m

E Field $200 Answer Back to Jeopardy Electric field lines start on + charges and end on  charges or infinity. A positive follows the electric field lines.

E Field $300 Answer Back to Jeopardy The energy per unit charge supplied by a battery is its voltage.

E Field $400 Answer Back to Jeopardy What kind of charge is at the center of this picture? It is positive.

Circuit Elements $100 Answer Back to Jeopardy What is the definition of conventional current? Flow of positive charge even when the charge is negative. SI unit 1 C/s = ! Amp = A

Circuit Elements $200 Answer Back to Jeopardy What is a battery? A battery is a device that supplies energy to a circuit by chemical reaction. EMF is Energy/Charge The SI is 1J/C = 1 Volt.

Circuit Elements $300 Answer Back to Jeopardy What is a resistor? A device that opposes the flow of current. Resistance R = V/I 1 Volt/Amp = 1 ohm = 1 

Circuit Elements $400 Answer Back to Jeopardy Suppose current is flowing in a wire from right to left. Which way do the electrons in the wire move? Left to right

Equations $100 Answer Back to Jeopardy What is Ohm’s Law? V = IR R is constant

Equations $200 Answer Back to Jeopardy What is the Power Equation? Power = IV =I²R = V²/R

Equations $300 Answer Back to Jeopardy What is the Power Usage equation? Energy = Power*Time 1 kW*h = 3,600,00 J = 3.6 MJ

Equations $400 Answer Back to Jeopardy Complete Table Use Add, Add Reciprocally R, Same to complete table SeriesParallel Charge/Current SameAdd VoltageAddSame ResistanceAddAdd R

Problems $100 Answer Back to Jeopardy The light bulbs in this circuit are connected in parallel.

Problems $200 Answer Back to Jeopardy The light bulbs in this circuit are connected in series.

Problems $300 Answer Back to Jeopardy A battery operating a large flashlight produces a current of 2 amperes in a light bulb that has a resistance of 4 ohms. The voltage of the battery is_______. V = IR = 8 Volts

Problems $400 Answer Back to Jeopardy Two charged bodies separated by a distance d exert an electrical force on each other. The distance d is doubled. The electrical force on each body is now 0.25 times the original force.

Potpourri $100 Answer Back to Jeopardy Name 2 types of current. DC and AC

Potpourri $200 Answer Back to Jeopardy What does a transformer do? Step up or down voltage in AC circuit.

Potpourri $300 Answer Back to Jeopardy If the temperature of a wire increases, its resistance increase.

Potpourri $400 Answer Back to Jeopardy Lightning is dangerous to humans because lightning strokes have large current.

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