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9th Class Physics Chapter 6 Online Preparation
9th Class English Medium Subjects
9th Class Urdu Medium Subjects
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
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Total Questions10
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Available Sets11
Physics (New Book) - 9th Class Physics English Medium Chapter 6 Preparation
Question # 1
Which form of energy is most preferred and why
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Ans 1: Solar energy is preferred to others.
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Ans 2: Reason: It does not pollute the environmentIts cost is less
Prepare Complete Set Wise Questions For Chapter 6 "9th Class Physics English Medium Chapter 6 Preparation "
9th Class Physics English Medium Chapter 6 Preparation - Set 1
Question # 1
Which form of energy is most preferred and why
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Ans 1: Solar energy is preferred to others.
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Ans 2: Reason: It does not pollute the environmentIts cost is less
9th Class Physics English Medium Chapter 6 Preparation - Set 2
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
9th Class Physics English Medium Chapter 6 Preparation - Set 3
Question # 1
How is energy converted from one form to another
- Ans 1: Energy can be converted from one from to another form For example heat energy is converted into mechanical energy and electrical energy can be converted into light energy
9th Class Physics English Medium Chapter 6 Preparation - Set 4
Question # 1
What is meant by chemical energy
- Ans 1: Chemical Energy: The energy released from substances during chemical reactions is called chemical energy
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Ans 2: Sources of chemical energy: Energy of wood and coal from burningChemical is found in food and fuels.
9th Class Physics English Medium Chapter 6 Preparation - Set 5
Question # 1
What are the major sources of energy?
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Ans 1: Major sources of energy are as
following . 1-Fossil fuels2-Nuclear Fuels.
9th Class Physics English Medium Chapter 6 Preparation - Set 6
Question # 1
Define fission reaction
- Ans 1: Fission reaction: Nuclear fussion is the process in which a large nucleus splits into smaller nuclei with the release of energy
9th Class Physics English Medium Chapter 6 Preparation - Set 7
Question # 1
Why fossil fuels are called non-renewable form of energy
- Ans 1: The fossil fuels are one used to get energy that are consumed completely and these took millions of year for their formation So these are no renewable.
9th Class Physics English Medium Chapter 6 Preparation - Set 8
Question # 1
Name the five devices that convert electrical energy into mechanical energy
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Ans 1: The electrical energy is converted into mechanical energy byElectrical motorDrill machineElectric fanGrinderElevator
9th Class Physics English Medium Chapter 6 Preparation - Set 9
Question # 1
Define Kinetic energy, also give its formula.
- Ans 1: The energy possessed by a body due to its motion is called kinetic energy . Formula: K.E.=1/2 mv2
9th Class Physics English Medium Chapter 6 Preparation - Set 10
Question # 1
Write the mass energy equation and value of speed of light
- Ans 1: Mass Energy Equation: The Einstein's mass-energy equation states that mass and energy are interconvertible to each other
- Ans 2: Equation: E=mc
9th Class Physics English Medium Chapter 6 Preparation - Set 11
Question # 1
Define potential energy, also give its formula.
- Ans 1: The energy possessed by a body due to to position is called potential energy. There are two type of potential energy. . Formula: P.E. = mgh i. Elastic potential energy ii.Gravitational potential energy.
