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Gen Physics 2 - UT1

Total questions: 50

Worksheet time: 54mins

Name
Class
Date
1.

Two like charges

a)

neutralize each other.

b)

attract each other.

c)

repel each other.

d)

must be neutrons.

2.

The charge of an electron is

a)

positive.

b)

negative.

c)

Electrons have no charge

d)

Cannot be determined

3.

An atom loses an electron. What type of charge does it have now?

a)

positive

b)

negative

c)

neutral

d)

cannot be determined

4.

What direction are the electric field lines around an electron?

a)

towards the charge

b)

away from the charge

c)

towards and away from the charge

d)

cannot be determined

5.

What does it mean when the electric field lines are close together?

a)

The field is positive

b)

The field is negative

c)

The field is weak

d)

The field is strong

6.

When a balloon is rubbed on clothes it acquires a charge by ___________

a)

Induction

b)

reduction

c)

friction

d)

concuction

7.

What do you call the process of charging a conductor by bringing it near another charged object?

a)

induction

b)

polarization

c)

neutralization

d)

conduction

8.

The law of conservation of charge states that...

a)

all atoms have more protons than electrons

b)

only protons can be rubbed off of an atom

c)

charge cannot be created or destroyed

d)

charge cannot be transferred

9.

Which of the following labeled points is in the region with the strongest force of electric charge

a)

A

b)

B

c)

C

d)

D

e)

E

10.

Consider the electric field lines shown in the diagram below. From the diagram, it is apparent that object A is ____ and object B is ____.

a)

+,+

b)

+,-

c)

-,+

d)

-,-

11.

The electrical force between charges is strongest when the charges are

a)

close together

b)

far apart

c)

the electric force is constant everywhere.

d)

there is no pattern

12.

What size resistor would produce a 4 Amp current flow with a 12 Volt battery

a)

2 ohms

b)

3 ohms

c)

4 ohms

d)

48 ohms

13.

What is current measured in?

a)

Ω (Ohms)

b)

V (Volts)

c)

A (Amps)

d)

W (Watts)

14.

What is the SI Unit for electric potential?

a)

Ω (Ohms)

b)

V (Volts)

c)

A (Amps)

d)

W (Watts)

15.

What is the SI Unit for power?

a)

Ω (Ohms)

b)

V (Volts)

c)

A (Amps)

d)

W (Watts)

16.

What is resistance measured in?

a)

Ω (Ohms)

b)

V (Volts)

c)

A (Amps)

d)

W (Watts)

17.

Electricity that flows in a closed path is called a

a)

path

b)

current

c)

circuit

d)

light

18.

What is the Voltage of a circuit that has a resistance of 20 Ω and a current of 12 A?

a)

8 V

b)

32 V

c)

110 V

d)

240 V

19.

The mathematical relationship among Voltage, Current, and Resistance

a)

Ohm's Law

b)

Faraday's Law

c)

Coulomb's Law

d)

Kirchhoff's Voltage Law

20.

Current times Resistance equals

(I X R)

a)

Power

b)

Voltage

c)

Amperage

d)

Ohm

21.

If the Voltage is increased and the resistance stays the same, Current will

a)

Increase

b)

Decrease

c)

Stay the same

d)

Cannot be determined

22.

If the Voltage stays the same and Resistance is increased, Current will

a)

Increase

b)

Decrease

c)

Stay the same

d)

Cannot be determined

23.

Capacitance is measured in___________

a)

ohms

b)

farads

c)

henry

d)

hertz

24.

The insulating layer of a capacitor is called the

a)

plate

b)

conductors

c)

dielectric

d)

terminals

25.

In the capacitor, the dielectric can be made out of all sorts of ---------- materials and the plates are made of a -------------- material.

a)

conductive, insulating

b)

conductive, conductive

c)

insulating, conductive

d)

insulating, insulating

26.

------------------------ is created out of two metal plates and an insulating material called a dielectric.

a)

An inductor

b)

A capacitor

c)

A fixed resistor

d)

A variable resistor

27.

Compute for the total resistance in the circuit.

a)

20 ohms

b)

60 ohms

c)

90 ohms

d)

100 ohms

28.

Compute the total resistance in the circuit.

a)

1.2 ohms

b)

2.4 ohms

c)

3.6 ohms

d)

4.8 ohms

29.

Compute for the current that runs through the circuit.

a)

0.02 A

b)

0.2 A

c)

2.0 A

d)

20 A

30.

Compute for the current that runs through the circuit.

a)

0.144 Amps

b)

1.44 Amps

c)

14.4 Amps

d)

144 Amps

31.

How much resistance does this circuit have?

a)

6 Ohms

b)

12 Ohms

c)

18 Ohms

d)

30 Ohms

32.

How much capacitance does this circuit have?

a)

0.6 Farads

b)

1.7 Farads

c)

3.6 Farads

d)

4.2 Farads

33.

Cujo, the dog, walks around with 1.23 x 105 electrons. How much charge is she carrying around?

a)

1.968 x 10-14 C

b)

2.968 x 10-14 C

c)

1.968 x 10-18 C

d)

2.968 x 10-18 C

34.

A negative charge of -6.0 x10-5 C exerts an attractive force of 65 N on a second charge 0.50 m away. What is the magnitude of the second charge?

a)

-3.01x10-3 C

b)

-3.01x10-5 C

c)

3.01x10-3 C

d)

3.01x10-5 C

35.

A force of 4.4x103 N exists between a positive charge of 8.0x10-4 C and a negative charge -3.0x10-4 C. What is the distance that separates the charges?

a)

0.5 m

b)

0.6 m

c)

0.7 m

d)

0.8 m

36.

Which is a polarized capacitor in the following pictures?

a)
b)
c)
d)
37.

A sample of resistors inside electronic circuits.

a)
b)
c)
d)
38.

If I1= 2A; I2 = 4 A; I3= 3 A; what is the value of I4 according to Kirchhoff's Current Law?

a)

1 A

b)

2 A

c)

3 A

d)

4 A

39.

What is the value of the voltage drop in R3 given the following image of a circuit?

a)

-10 V

b)

-15 V

c)

-20 V

d)

-25 V

40.

What is the total Current which goes through the circuit as shown in the diagram?

a)

0,01 Amp

b)

0.1 Amp

c)

1.0 Amp

d)

10 Amps

41.

Why are octopus electrical connections dangerous?

a)

It increases resistance in a circuit.

b)

It decreases resistance in the circuit.

c)

It invites theft of electrical wirings

d)

It increases the capacitance of the circuit.

42.

Who was the Italian Scientist who invented the first electric battery?

a)

Michael Faraday

b)

Georg Ohm

c)

Alessandro Volta

d)

Charles Agustin de Coulomb

43.

Who was the physicist who found the relationship between electric current, electric potential, and electric resistance?

a)

Michael Faraday

b)

Georg Ohm

c)

Alessandro Volta

d)

Charles Agustin de Coulomb

44.

Who was the physicist who discovered and described the attracting and repelling electrostatic force between two charges?

a)

Michael Faraday

b)

Georg Ohm

c)

Alessandro Volta

d)

Charles Agustin de Coulomb

45.

Which is the SI Unit for electric current?

a)

ohm

b)

ampere

c)

coulomb

d)

farad

46.

Which is the SI Unit for capacitance?

a)

watt

b)

ampere

c)

coulomb

d)

farad

47.

Which is the SI Unit for electric power?

a)

watt

b)

ampere

c)

coulomb

d)

farad

48.

Which is the electrical symbol for resistor?

a)
b)
c)
d)
49.

Which is the electrical symbol for a polarized capacitor?

a)
b)
c)
d)
50.

Which is the electrical symbol for a DC power source?

a)
b)
c)
d)

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