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

Name the device that converts mechanical energy into electrical energy.

Ans 1: Generator is a device which converts mechanical energy into electrical energy.

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

Set 1

10 Questions
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Set 2

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Set 3

10 Questions
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Set 4

10 Questions
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Set 5

10 Questions
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Set 6

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Set 7

10 Questions
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Set 8

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Set 9

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Set 10

10 Questions
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Set 11

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

Question # 1

Name the device that converts mechanical energy into electrical energy.

Ans 1: Generator is a device which converts mechanical energy into electrical energy.

Submit

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

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 3

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

Question # 1

Define Elastic potential energy and give its example.

Ans 1: Elastic Potential Energy:
The energy present in the stretchedbow is called elastic potential energy. A stretchedbow has potential energy due to its stretched position

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

Question # 1

Mechanical energy converts into heat energy tive its example.

Ans 1: Mechanical energy converts into heat energy. Example: Rub your hands together quickly . You will feel them warm. You have used your muscular energy in rubbing hands as a result heat is produced.

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

Question # 1

On which factor work depends

Ans 1: Work: Work is done when a force acting on a body displaces in the direction of force
Formula: it is a scalar quantity
Ans 2: Dependent factors of force: Work depends upon three factors
Force f
Displacement covers

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

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

Submit

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

Question # 1

What is meant by chemical energy

Ans 1: Chemical Energy: The energy released from substances during chemical reactions is called chemical energy
Ans 2: Sources of chemical energy: Energy of wood and coal from burning
Chemical is found in food and fuels.

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

Question # 1

Define power and watt

Ans 1: Power: The rate of doing work
Ans 2: Formula: p= work done/Time taken
P=w/t
Ans 3: Quantity: power is a Scalar quantity
power SI unit of power is watt
Watt: The power of a body is one watt if it does work
Large units of power

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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

Submit

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

Question # 1

Give the uses of solar cells.

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

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Physics

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

Name the device that converts mechanical energy into electrical energy.

Define heat energy

Which form of energy is most preferred and why

What is meant by Geothermal energy

What are solar panels.

What are solar panels

What is photo cell

Define unit of work

Define work and energy

How solar energy can be converted directly into electricity?

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

Name the device that converts mechanical energy into electrical energy.

Define heat energy

Which form of energy is most preferred and why

What is meant by Geothermal energy

What are solar panels.

What are solar panels

What is photo cell

Define unit of work

Define work and energy

How solar energy can be converted directly into electricity?

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

Write two disadvantages of thermal pollution

How Biomass is used to obtain energy

Give example of the renewable energy source

Name the five devices that convert electrical energy into mechanical energy

Define Walt

Why fossil fuels are called non-renewable form of energy

A crate is moved by pulling, with mass the attached to it.

Define power and watt

What is meant by chemical energy

Define work. What is its SI unit.

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

Define heat energy

Write down the name of two nuclear reactions

Write the bigger units of power.

What are effects of fossil fuels on human health

Why fossil fuels are called non-renewable form of energy

Define kinetic EnergyWrite its equation

Give example of the renewable energy source

Define chemical energy and write one method to obtain it

Define elastic potential energy

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

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

Define Elastic potential energy and give its example.

Define kinetic energy and write tis equation

Define efficiency and write its equation

Define work and energy

What is meant by effieciency of a system

How do we gain energy from air

Define Potential energy and write its formula.

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?

Differentiate between mechanical and chemical energy

How is energy converted from one form to another

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

Mechanical energy converts into heat energy tive its example.