Free Printable PLTW POE Unit 1.2 Review

Worksheets

PLTW POE Unit 1.2 Review

Total questions: 35

Worksheet time: 26mins

Name

Class

Date

What is true about the current through a series circuit?

Current is added up across the light bulbs

The same current flows through all three light bulbs.

Current is the same voltage as the battery

The electrical current is divided between the three light bulbs.

what is this symbol for?

light bulb

switch

battery

resistor

A closed electrical circuit in which the current is divided into two or more paths and then returns via a common path to complete the circuit.

Series

Parallel

Open

Dihexihedral

What is the unit of measurement for Power?

Joules

Newtons

Watts

Meters

How to you calculate the total resistance in a series circuit?

R1 + R2+ R3

R1 - R2 - R3

1/R1 + 1/R2 + 1/R3

R1 = R2 = R3

Resistance is measured in ___.

watts.

amps.

ohms.

Voltage is measured in __.

volts.

watts.

coulombs.

Current has units:

kilowatt·hour

ampere

coulomb

volt

An electric circuit with only one path through which charge can flow

Parallel Circuit

Series Circuit

Open Circuit

none of the above

10.

Which formula is used to calculate total resistance for a parallel circuit?

$R_T=\frac{1}{\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}...}$

$R_T=R_1+R_2+R_3...$

$R_T=\frac{1}{R_1+R_2+R_3\ ...}$

11.

Calculate the total resistance for the series circuit. Round to the nearest WHOLE NUMBER. Just write the number.

(a)

12.

What is the total current for the circuit? Round to the nearest 1/1000. That means you should have 3 digits behind the decimal.

(a)

13.

What is the voltage across the 300 ohm resistor? Use your rounded answer from the current question. Your answer should be rounded to the nearest tenth.

(a)

14.

What is the difference between Series and Parallel circuits?

Series circuits can only have one component (light or resistor) and a parallel circuit can have more than one.

Series circuit has one path for the electricity to follow and parallel circuits have more than one.

Series circuits use more electricity than parallel circuits.

Parallel circuits use more electricity than series circuits.

15.

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

1 Ohm

3 Ohms

4 Ohms

12 Ohms

16.

What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?

25 V

10 V

2.5 V

0.4 V

17.

The mathematical relationship among Voltage, Current, and Resistance

Faraday's Law

Tesla's Law

Edison's Law

Ohm's Law

18.

What would the circuit resistance be if a 7.5 Amp draw was present with the engine running and the charging system producing 15 Volts

15 Ohms

4 Ohms

0.3333 Ohms

2 Ohms

19.

As the resistance of a circuit increases, the current will...

increase

decrease

stay the same

20.

The multimeter should always be set ______ than/with the indicated value.

Lower

Higher

Twice

The same

21.

What will appear to the display if the probes are connected in reverse?

A positive reading

A "twice the value" reading

A negative reading

An infinity symbol

22.

What type of measurement requires the circuit to be broken when using a multimeter?

Voltage

Current

Resistance

Frequency

23.

A tool that measures voltage, current, resistance, and continuity is called a:

voltmeter

resistor

multimeter

screwdriver

24.

What is this called?

Jumper wires

Circuit

Battery leads

Breadboard

25.

Calculate the resistance in ohms for a circuit with 6.8mA and 6V. Round your answer the to nearest whole number.

(a)

26.

Identify the circuit component.

Battery

Resistor

Switch

Diode

27.

Identify the circuit component.

Battery

Resistor

Switch

Diode

28.

You have to take a 120VDC reading with the multimeter. Which dial setting would you set.

2 VDC

20 VDC

200 VDC

600 VDC

29.

Calculate the power for a motor ran by a 12v battery with a current of 2 amps and 150 ohms of resistance.

24 watts

300 watts

1800 watts

3600 watts

30.

Calculate the percent efficiency of a motor that lifts 50 N 5 meters in 10 seconds. The motor is ran by a 9v battery with 3 amperes of current.

25%

27%

108%

92.6%

31.

The current across every component is equal is a characteristic of this type of circuit.

Series Circuit

Parallel Circuit

Combination Circuit

32.

Coal, oil, and natural gas are all considered...

Fossil Fuels

Renewable Energy

Electrical Energy

Geothermal

33.

The voltage across every branch is equal is a characteristic of this type of circuit.

Series Circuit

Parallel Circuit

Combination Circuit

34.

Components of this type of circuit are connected end to end with only one flow for the electrons.

Series Circuit

Parallel Circuit

Combination Circuit

35.

Calculate the current for a circuit with 12V and 8Ω.

1.5

Reset

PLTW POE Unit 1.2 Review

Total questions: 35

Worksheet time: 26mins

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