ICS Part 1 Physics English Medium Chapter 4 Online Short Questions Test with Answers

Question # 1

How energy is obtained from direct combustion and fermentation.

Ans 1: Direct Combustion: It is applied to get energy from waste product commonly known as solid waste and confined it into chamber and ignite it.The heat produced is then used in a boiler to run the turbine of generator

Fermentation: Biofuel such as ethanol is a replacement of gasoline which is obtained by fermentation of biomass using. Enzymes and by decomposition through bacterial action in the absence of air . The rotting of biomass in a closed tank called digester produces biogas which can be piped out to use for cooking and heating.

Question # 2

How can we gain energy from tides?

Ans 1: The tides raise the water in the sea roughly twice a day.If the water at the high tides is trapped in a basin by constructing a dam, then it is possible to use this as a source of energy. There dam is filled at high tide and water is released in a controlled way at low tide to drive the turbines and generate electricity.

Question # 3

What is solar constant ? What is its value?

Ans 1: Solar energy at incidence outside the Earth's atmosphere is about 1.4kw m^-2which is referred as solar constant.

Question # 4

An object has one joule of potential energy.Explain what it means.

Ans 1: It means that work has been done on the body by the force of 1 N which has lifted the body through a distance of 1 m.This work has been stored in the body in the form of P.E. Which is 1J.

Question # 5

A girl drops a cup from a certain height which breaks into pieces.What energy changes are involved?

Ans 1: When the cup was in the hands of girl, it had gravitational P.E when the cup is dropped, its P.E. Is converted into the K,E On striking the ground , this energy is converted into sound energy, heat, work done in breaking the cup into pieces and kinetic energy of pieces.

Question # 6

Define kilowatt hour (kWh).

Ans 1: Kilowatt hour is the work done in one hour by an agency whose power is one kilowatt.
1 kWh = 3.6x10⁶

Question # 7

Describes four uses of solar cells.

Ans 1: Solar cells are used.
1. To power satellites
2. In remote ground based weather stations
3. In rain forest communication systems
4. In solar calculators

Question # 8

A boy uses a catapult to throw a stone which accidentally smashes a greenhouse window.What energy changes are involved?

Ans 1: Initially, the catapult had elastic P.E when the stone is thrown, its P.E is converted into K.E On striking the window, this energy is converted into sound energy, heat energy work done in breaking the window into pieces and kinetic energy of pieces.

Question # 9

What is conservation field ? Give example . (OR) Loop?

Ans 1: Conservation Field:A field is said to be conservation field if the work down in it along a closed path is equal to zero.
Example:
1. Gravitational field
2. Electrostatic Field
3. Magnetic field
Loop:A closed path is that path in which a body reaches to its starting point again after passing through several points.

Question # 10

What do you mean by variable force?Give its two examples?

Ans 1: The force which is not constant but varies in magnitude and direction or in both is called a variable force.
1. Force a gravity acting on a rocket moving away from earth.
2. Force exerted by the spring increases by the amount of stretch.

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ICS Part 1 Physics English Medium Chapter 4 Online Short Questions Test with Answers

Online Short Questions For Chapter 4 "ICS Part 1 Physics Chapter 4 Short Questions Test "

Physics - ICS Part 1 Physics Chapter 4 Short Questions Test

How energy is obtained from direct combustion and fermentation.

How can we gain energy from tides?

What is solar constant ? What is its value?

An object has one joule of potential energy.Explain what it means.

A girl drops a cup from a certain height which breaks into pieces.What energy changes are involved?

Define kilowatt hour (kWh).

Describes four uses of solar cells.

A boy uses a catapult to throw a stone which accidentally smashes a greenhouse window.What energy changes are involved?

What is conservation field ? Give example . (OR) Loop?

What do you mean by variable force?Give its two examples?

Prepare Complete Set Wise Questions For Chapter 4 "ICS Part 1 Physics Chapter 4 Short Questions Test "

Set 1

Set 2

Set 3

Set 4

ICS Part 1 Physics Chapter 4 Short Questions Test - Set 1

How energy is obtained from direct combustion and fermentation.

How can we gain energy from tides?

What is solar constant ? What is its value?

An object has one joule of potential energy.Explain what it means.

A girl drops a cup from a certain height which breaks into pieces.What energy changes are involved?

Define kilowatt hour (kWh).

Describes four uses of solar cells.

A boy uses a catapult to throw a stone which accidentally smashes a greenhouse window.What energy changes are involved?

What is conservation field ? Give example . (OR) Loop?

What do you mean by variable force?Give its two examples?

ICS Part 1 Physics Chapter 4 Short Questions Test - Set 2

What are non-conventional energy sources? Describe briefly.

A person holds a bag of groceries while standing still. A car is stationary with its engine running.How are the two situations similar from the point of view of work ?

Define work and its SI unit.

A boy uses a catapult to throw a stone which accidentally smashes a greenhouse window.What energy changes are involved?

What is solar constant ? What is its value?

How heat is generated within the Earth?

What is Salter's duck?

Write some methods to obtain solar energy.

How can we gain energy from tides?

Discuss the work done in gravitational Field?

ICS Part 1 Physics Chapter 4 Short Questions Test - Set 3

How can we gain energy from tides?

What is solar constant ? What is its value?

How can you get energy from the waves?

A boy uses a catapult to throw a stone which accidentally smashes a greenhouse window.What energy changes are involved?

How energy can be obtained from waste products?

Define conservative and non-conservative fields?

What is conservation field ? Give example . (OR) Loop?

What is Salter's duck?

How sunlight is directly converted into electricity by solar cells?

Discuss the work done by a variable force ?

ICS Part 1 Physics Chapter 4 Short Questions Test - Set 4

Differentiate between conservative and non- conservative force.

How electrical energy can be obtained from sunlight by indirect conversion method?

What do you mean by variable force?Give its two examples?

Describes four uses of solar cells.

What is solar constant ? What is its value?

How energy can be obtained from waste products?

Define conservative field.Give its example.

When a rocket re enters the atmosphere, its nose con becomes very hot.Where does this heat energy come from?

What is Salter's duck?

What is geothermal energy? How is it generated ?

ICS Part 1 Physics Short Questions Test

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