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Worksheets

Electrical Fundamentals

Total questions: 20

Worksheet time: 12mins

Name
Class
Date
1.

The outer shell electron of an atom; can leave the atom more easily than other types of electrons.

a)

Ions

b)

Valence electrons

c)

Static electricity

d)

None of the above

2.

When an atom is stable

a)

Nucleus is stable

b)

Number of protons is equal to number of neutrons

c)

Number of protons is equal to number of electrons

d)

Number of electrons is equal to number of neutrons

3.

What is the charge of neutrons

a)

Neutral

b)

(+ ve)

c)

(- ve)

d)

None of the above

4.

An atom or molecule that has an electrical charge.

a)

Static electricity

b)

Ions

c)

Valence electrons

d)

Charge

5.

Any substance that has atoms with easily moving electrons is called

a)

Matter

b)

Insulator

c)

Semi conductor

d)

Conductor

6.

An insulator is

a)

Materials that allow the electrons to move freely through them

b)

Materials that allow the electrons to move partially through them

c)

Materials do not allow the electrons to move freely through them

d)

None of above

7.

Silicon and Germanium are known as

a)

Semi conductor

b)

Insulator

c)

Conductor

d)

None of the above

8.

Choose all right answers

a)

(+ve) and (-ve) charge attract

b)

(-ve) and (-ve ) charge attract

c)

(+ve) and (+ve) charge repel

d)

(+ve) and (+ve) charge attract

9.

Aircraft bonding is done to reduce

a)

Efficiency

b)

Fuel flow

c)

Static electricity

d)

None of the above

10.

The device on the aircraft that helps discharge the static electricity caused by the contact of the aeroplane with the air.

a)

Static ports

b)

Static wicks

c)

Pitot tube

d)

None of the above

11.

The energy stored in an object because of its position is called

a)

Electrical energy

b)

Kinetic energy

c)

Potential energy

d)

None of the above

12.

The energy created because of the movement of an object is called

a)

Static energy

b)

Kinetic energy

c)

Potential energy

d)

None of the above

13.

The pressure that moves the electrons in the circuit.

a)

Resistance

b)

Current

c)

Voltage

d)

None of the above

14.

An electrical quantity that reduces the electric current in the circuit by resisting the flow of the electron

a)

Resistance

b)

Current

c)

Voltage

d)

None of the above

15.

The flow of the electric charge in a conductor , because of free moving electrons is called

a)

Voltage

b)

Current

c)

Resistance

d)

None of above

16.

DC is called --------------- in which the electrons move only in ----------------------------

(a)  

17.

AC is called ----------------- in which electrons keep on changing their -------------------

(a)  

18.

According to ohms law , voltage is directly proportional to ------------------- and -----------------

(a)  

19.

Ohms is the unit of

a)

Voltage

b)

Current

c)

Resistance

d)

Static electricity

20.

The type of resistor ,in which the value can be changed from 0 to a particular value

(a)