ICSE Worksheet for Chapter - 8 Static Electricity Class 8

ICSE Worksheet for Chapter - 8 Static Electricity Class 8

Worksheets For class 8

Find ICSE Worksheet for chapter-8 Static Electricity class 8

1. CLASS-8
2. BOARD: ICSE
3. PHYSICS Worksheet - 8
4. TOPIC: Static Electricity
5. For other ICSE Worksheet for class 8 Science check out main page of Physics Wallah.

SUMMARY

• Static charges, Origin of charges, Charging an object – friction, conduction and induction
• Electroscope, Electric current, Static charges in the atmosphere, Lightning conductors

SECTION I – OBJECTIVE

1. Unlike charges ……… each other.
   1. Attract
   2. Repel
   3. Neither attract nor repel
   4. NOT
2. When a glass rod is rubbed with dry silk cloth, the charge acquired by the silk cloth is
   1. positive
   2. negative
   3. both positive and negative
   4. none of these
3. Silver is a
   1. bad conductor of electricity
   2. good conductor of electricity
   3. magnetic substance
   4. none of these
4. Charging a conductor by bringing another charged conductor close to it is called
   1. induction
   2. conduction
   3. convection
   4. radiation
5. An atom with deficiency of electron is
   1. positive ion
   2. negative ion
   3. neutral
   4. none of these
6. Electric current is flow of
   1. protons
   2. electrons
   3. neutrons
   4. none of these
7. The unit for resistance is
   1. amperes
   2. joules
   3. volts
   4. ohms
8. All wire used in electric circuits should be covered with
   1. a colouring material
   2. a conducting material
   3. an insulating material
   4. none of these
9. To protect the buildings from the damaging effects of lightning…………..conductors are used.
   1. Lightning
   2. Atmospheric
   3. Electric
   4. none of these
10. Conventional current is considered to be the flow of
    1. Protons
    2. Electrons
    3. Neutrons
    4. None of these

SECTION II - SUBJECTIVE

1. Define conductor and insulators.
2. Name three constituents of an atom and state the kind of charge on them.
3. State two methods of charging a conductor.
4. What is an electroscope? Name the two electroscopes.
5. What is a lightning conductor? How does it work?
6. An electric current of 12 ampere flows through a conductor in 15 seconds. Find the amount of charge that flows through the conductor.

Solutions: to worksheet-8 Topic- Static Electricity

Objective Problems:

Subjective Problems:

1. 6. Q = 180C