Week 12 – Friday Quiz

Static Electricity and ElectricityPhysical Science

Unit 2 – Period 30/70

Georgia Performance Standards

SPS10. Students will investigate the properties of electricity and magnetism.

a. Investigate static electricity in terms of• friction• induction• conduction

b. Explain the flow of electrons in terms of•alternating and direct current.•the relationship among voltage, resistance and current.•simple series and parallel circuits.

Instructions

• Please select the term that is best for the phrase.

• Each question is five pointsfive points.

Question 1

• Which image creates a circuit where the electrons travel in one direction?A)

B)

Question 2

• Which image creates a circuit where the electrons travel in both directions?A)

B)

Question 3

• How much power is generated when you read for 20 minutes using 75,000 J of energy? (remember power is J/s)

Question 4

• Match the term to the correct unit

A)VoltageB) PowerC) ResistanceD)EnergyE) Current

• Match the term to the correct unit

• Ohms• Joules• Amperes• Watts• Volts

Question 5

• Match the term to the correct abbreviation

A)VoltageB) PowerC) ResistanceD)EnergyE) Current

• Match the term to the correct abbreviation

• E• V• R• I• P

Question 6

• Match the term to the correct symbol

A)VoltageB) PowerC) ResistanceD)EnergyE) Current

• Match the term to the correct symbol

• Ω• V• W• A• J

Question 7

• Calculate the current in the circuit above.

Question 8

• To measure resistance, where would you put the clips?A) AAB) ABC) BBD) BCE) Any where on the circuit

Question 9

• To measure voltage, where would you put the clips?A) AAB) ABC) BBD) BCE) Any where on the circuit

Question 10

• In a parallel circuit you have resistors that measure 10 Ω, 35 Ω and 43 Ω. What is the total resistance?

Question 11

• In a series circuit you have resistors that measure 10 Ω, 35 Ω and 43 Ω. What is the total resistance?

Question 12

• During induction, a positively charged rod is brought near to but not touching the electroscope. The presence of the charged object above the plate of the electroscope induces charges to move down into the gold leaves, giving the electroscope an overall positive charge. The positive leaves repel. The same process occurs when the north poles of two magnets are brought close together: the two poles push away from each other. Both illustrate the principle that

• A) like charges or poles repel. • B) induction produces magnetism. • C) electricity induces magnetism. • D) opposite charges or poles repel.

Question 13

• Label the above picture as repel or attract.• A. __________• B. __________• C. __________

Question 14

• Charges move from areas of __________ potential to ___________ potential.

Question 15• Which image is an example of conduction?• A.

• B.

• C.

Question 16• Which image is an example of friction?• A.

• B.

• C.

Question 17• Which image is an example of induction?A.

B.

C.

Question 18

• Which picture(s) represent polarization?

Week 12 – Friday Quiz Answers

Static Electricity and ElectricityPhysical Science

Unit 2 – Period 30/70

Georgia Performance Standards

SPS10. Students will investigate the properties of electricity and magnetism.

a. Investigate static electricity in terms of• friction• induction• conduction

b. Explain the flow of electrons in terms of•alternating and direct current.•the relationship among voltage, resistance and current.•simple series and parallel circuits.

Instructions

• Please select the term that is best for the phrase.

• Each question is five pointsfive points.

Question 1

• Which image creates a circuit where the electrons travel in one direction?A)

B)

Question 2

• Which image creates a circuit where the electrons travel in both directions?A)

B)

Question 3

• How much power is generated when you read for 20 minutes using 75,000 J of energy? (remember power is J/s)– P = E/t• CHECK UNITS: Change ‘t’ to seconds.• 20 min x 60 s = 1200 s

– P = E/t– P = 75,000/1200– P = 62.5 W

Question 4

• Match the term to the correct unit

A)VoltageB) PowerC) ResistanceD)EnergyE) Current

• Match the term to the correct unit

• Volts• Watts• Ohms• Joules• Amperes

Question 5

• Match the term to the correct abbreviation

A)VoltageB) PowerC) ResistanceD)EnergyE) Current

• Match the term to the correct abbreviation

• V• P• R• E• I

Question 6

• Match the term to the correct symbol

A)VoltageB) PowerC) ResistanceD)EnergyE) Current

• Match the term to the correct symbol

• V• W• Ω• J• A

Question 7

• Calculate the current in the circuit above.• V = I x R• I = V/R• Change mΩ to Ω: 100/1000 = 0.1 Ω• I = 110/0.1• I = 1100 A

Question 8

• To measure resistance, where would you put the clips?A) AAB) ABC) BBD) BCE) Any where on the circuit

Question 9

• To measure voltage, where would you put the clips?A) AAB) ABC) BBD) BCE) Any where on the circuit

Question 10

• In a parallel circuit you have resistors that measure 10 Ω, 35 Ω and 43 Ω. What is the total resistance?

• Resistance = 1/10 + 1/35 + 1/43• = 0.152 Ω

Question 11

• In a series circuit you have resistors that measure 10 Ω, 35 Ω and 43 Ω. What is the total resistance?

• R = 10 + 35 + 43• = 88 Ω

Question 12

• During induction, a positively charged rod is brought near to but not touching the electroscope. The presence of the charged object above the plate of the electroscope induces charges to move down into the gold leaves, giving the electroscope an overall positive charge. The positive leaves repel. The same process occurs when the north poles of two magnets are brought close together: the two poles push away from each other. Both illustrate the principle that

• A) like charges or poles repel. • B) induction produces magnetism. • C) electricity induces magnetism. • D) opposite charges or poles repel.

Question 13

• Label the above picture as repel or attract.• A. repel• B. repel• C. attract

Question 14

• Charges move from areas of high potential to low potential.

Question 15• Which image is an example of conduction?• A.

• B. touching

• C.

Question 16• Which image is an example of friction?• A.

• B.

• C. Rubbing, opposing motion

Question 17• Which image is an example of induction?A. Not touching but charges

B.

C.

Question 18

• Which pictures represent polarization?• A and B