9th Class Physics English Medium Chapter 6 Work and Energy Online Short Questions Preparation

9th Class Physics Chapter 6 Online Preparation

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Online Short Questions For Chapter 6 "9th Class Physics English Medium Chapter 6 Preparation "

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Total Questions10
Available Sets11

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Physics (New Book) - 9th Class Physics English Medium Chapter 6 Preparation

Question # 1

Write the names of major sources of Energy

Ans 1: Major Source of Energy
Fossil fuels, Nuclear fuels, Sun, Water

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Prepare Complete Set Wise Questions For Chapter 6 "9th Class Physics English Medium Chapter 6 Preparation "

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Set 3

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Set 4

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Set 5

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Set 6

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Set 7

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Set 9

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Set 10

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Set 11

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9th Class Physics English Medium Chapter 6 Preparation - Set 1

Question # 1

Write the names of major sources of Energy

Ans 1: Major Source of Energy
Fossil fuels, Nuclear fuels, Sun, Water

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9th Class Physics English Medium Chapter 6 Preparation - Set 2

Question # 1

Write the bigger units of power.

Ans 1: Bigger units of power are kilowatt , megawatt, horse power.

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9th Class Physics English Medium Chapter 6 Preparation - Set 3

Question # 1

Define work. What is its SI unit.

Ans 1: Work: work is done when a force acting on a body displaces it in the direction it in the direction of force. W = Force x displacement w= F.S Unit: Its unit is newton meter or joule.

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9th Class Physics English Medium Chapter 6 Preparation - Set 4

Question # 1

How much power is used by a 40Kg athleteby climbing 10m high ladder in 10s

Ans 1: m = 40 kg
t = 10s
h=S = 10m
F= w
F= mg
F= 4 x 10
F= 400N

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9th Class Physics English Medium Chapter 6 Preparation - Set 5

Question # 1

What is soil erosion

Ans 1: As the rain water flows down its kinetic energy changes into thermal energy while parts of the kinetic energy of following water is used to wash away soil particles of rocks known as soil erosion.

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9th Class Physics English Medium Chapter 6 Preparation - Set 6

Question # 1

What is meant by efficiency of a system?

Ans 1: Efficiency of a system is the ratio of required form of energy obtained from a system as output to the total energy given to it as input. Formula: Efficiency = Required form of output/total input energy

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9th Class Physics English Medium Chapter 6 Preparation - Set 7

Question # 1

Mechanical energy can be converted in heat energy

Ans 1: Explain with an example: By rubbing hands quickly these will be warmed Its means b rubbing hand muscular energy is used and as a result heat is produced, In this process of rubbing hands mechanical energy is converted into heat energy

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9th Class Physics English Medium Chapter 6 Preparation - Set 8

Question # 1

Write two disadvantages of thermal pollution

Ans 1: Thermal pollution upsets the balance of lift
Thermal pollution endanger the survival of many species.

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9th Class Physics English Medium Chapter 6 Preparation - Set 9

Question # 1

Name the five devices that convert electrical energy into mechanical energy

Ans 1: The electrical energy is converted into mechanical energy by
Electrical motor
Drill machine
Electric fan
Grinder
Elevator

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9th Class Physics English Medium Chapter 6 Preparation - Set 10

Question # 1

Name the five devices that convert electrical energy into mechanical energy

Ans 1: The electrical energy is converted into mechanical energy by
Electrical motor
Drill machine
Electric fan
Grinder
Elevator

Submit

9th Class Physics English Medium Chapter 6 Preparation - Set 11

Question # 1

Define heat energy

Ans 1: Heat Energy: A form of energy given out by hot bodies is called heat energy
Ans 2: Sources: Heat obtained by burning fuels
Sum, Friction forces

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6th Unit

9th class Physics Chapter 6 (English Medium)

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Matric Part 1/9th Class Physics Chapter 6 Short Question Test With Answer for Unit 6 Work and Energy

9th Class English Medium Subjects

9th Class Urdu Medium Subjects

Online Short Questions For Chapter 6 "9th Class Physics English Medium Chapter 6 Preparation "

Physics (New Book) - 9th Class Physics English Medium Chapter 6 Preparation

Write the names of major sources of Energy

How much work is done when a body moves with uniform velocity?

Why fossil fuels are called non- renewable source of energy?

Give purposes of solar panels

Define elastic potential energy

Prove that

Define unit of work

Define efficiency and write its equation

How a pole vaulter acquired changes of energy?

To construct such a working system whose efficiency is 100% is impossible Why

Prepare Complete Set Wise Questions For Chapter 6 "9th Class Physics English Medium Chapter 6 Preparation "

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

Set 7

Set 8

Set 9

Set 10

Set 11

9th Class Physics English Medium Chapter 6 Preparation - Set 1

Write the names of major sources of Energy

How much work is done when a body moves with uniform velocity?

Why fossil fuels are called non- renewable source of energy?

Give purposes of solar panels

Define elastic potential energy

Prove that

Define unit of work

Define efficiency and write its equation

How a pole vaulter acquired changes of energy?

To construct such a working system whose efficiency is 100% is impossible Why

9th Class Physics English Medium Chapter 6 Preparation - Set 2

Write the bigger units of power.

Define Elastic potential energy and give its example.

What is soil erosion

What two sources of non-renewable energy

Write two disadvantages of thermal pollution

A body of mass 50 kg is raised to a height of 3m what is its potential energy?

What is meant by bio mass energy?

Define watt.

Define mechanical energy and write its types

Define energy give two types of mechanical energy

9th Class Physics English Medium Chapter 6 Preparation - Set 3

Define work. What is its SI unit.

Write uses of energy, pollute our environment?

Define Elastic potential energy.

When does a foce do work

Name such a device that converts mechanical energy into electrical energy

Define Walt

Define heat energy

Write the uses of wind energy

What are effects of fossil fuels on human health

To construct such a working system whose efficiency is 100% is impossible Why

9th Class Physics English Medium Chapter 6 Preparation - Set 4

How much power is used by a 40Kg athleteby climbing 10m high ladder in 10s

Name the device that converts mechanical energy into electrical energy.

Define potential energy, also give its formula.

When does a force do work? Explain.

Define power and watt

Define energy, give two types of mechanical energy.

State law of conservation of energy

Write names of two non-renewable and renewable sources of energy

Write uses of energy, pollute our environment?

Define kinetic EnergyWrite its equation

9th Class Physics English Medium Chapter 6 Preparation - Set 5

What is soil erosion