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 "

Try The Short Questions For 9th Class Physics English Medium Chapter 6 Preparation

Total Questions10
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Physics (New Book) - 9th Class Physics English Medium Chapter 6 Preparation

Question # 1

Define work and energy

Ans 1: Work: Work is said to be done when force acting on a body displaces it in the direction of the force.
Ans 2: Energy: A body possesses energy if it is capable to do work

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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 2

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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 8

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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

Define work and energy

Ans 1: Work: Work is said to be done when force acting on a body displaces it in the direction of the force.
Ans 2: Energy: A body possesses energy if it is capable to do work

Submit

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

Question # 1

Write down the name of two nuclear reactions

Ans 1: Fission and fusion are two major reactions which give out nuclear energy

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

Question # 1

What are the major sources of energy?

Ans 1: Major sources of energy are as following .
1-Fossil fuels
2-Nuclear Fuels.

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

Question # 1

How can you find the efficiency of 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
We can find the efficiency of a system by following formula

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

Question # 1

Why do we need energy

Ans 1: Energy: A body possesses energy if it is capable to do work
Ans 2: We Need Energy: We need energy toi perform various activities in our daily life

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

Question # 1

Give the uses of solar cells.

Ans 1: Solar cells are used in calculators, watches and toys.

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

Question # 1

Define unit of work.

Ans 1: Unit of work is joule. Amount of work is one joule when a force of one newton displaces a body through one meter in the direction of force. 1 J = 1 Nm

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

Question # 1

Write uses of energy, pollute our environment?

Ans 1: Burning of fuel and solid wastes in homes, automobiles and factories release harmful amounts of air pollutants
2- Nuclear power plants do not produce carbon dioxide, but they produce dangerous radioactive waste

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

Question # 1

Define elastic potential energy

Ans 1: The energy possessed due to stretched position in a body is called elastic potential energy. It is stored potential energy in compressed spring

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

Question # 1

Write brief note on Einstein mass energy equation

Ans 1: Einstein predicted the interconversion of matter and energy. According to him, a loss in the mass of a body provides a lot of energy This happen in the nuclear reaction The reaction between the mass m and energy E is given by Einstein's mass energy equation
The above equation shows that tremendous amount of energy can be obtained from small quantity of matter It happens that matter is a highly concentrated form of energy

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

Question # 1

Define energy, give two types of mechanical energy.

Ans 1: A body possess energy if it is capable to do work. Unit: Its unit is joule Quantity: It is scalar quantity Types of mechanical energy: i. Kinetic energy ii. Potential energy

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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

Define work and energy

Write down the name of two nuclear reactions

Define kinetic EnergyWrite its equation

Write the bigger units of power

A cyclist does 12 joules of useful work while pedaling his bike from every 100 joules of food energy which he takes. What is his efficiency?

Write the mass energy equation and value of speed of light

When does a force work

How is energy converted from one form to another

What are effects of fossil fuels on human health

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

Define work and energy

Write down the name of two nuclear reactions

Define kinetic EnergyWrite its equation

Write the bigger units of power

A cyclist does 12 joules of useful work while pedaling his bike from every 100 joules of food energy which he takes. What is his efficiency?

Write the mass energy equation and value of speed of light

When does a force work

How is energy converted from one form to another

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 2

Write down the name of two nuclear reactions

Define mechanical energy and write its types

What is meant by term power?

What is meant by Geothermal energy

When does a force work

Mechanical energy can be converted in heat energy

Define heat energy

Write names of two renewable energy sources

Mechanical energy converts into heat energy give its example

How do we gain energy from air

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

What are the major sources of energy?

On which parts solar house heating system consist of

Define kinetic energy also give its formula

On what parts a heating system consist of

Define work and energy

Define unit of work

Define potential energy and write its formula

Why do we need energy

What is meant by term power?

How is energy converted from one form to another

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

How can you find the efficiency of system

Define mechanical energy and write its types

Define fission reaction

What is magma

What is difference between kinetic Energy and potential Energy

Write down the name of two nuclear reactions

Name two devices that convert electrical energy into mechanical energy

Give purposes of solar panels

Write the mass energy equation and value of speed of light

What is photo cell

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

Why do we need energy