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

Question # 1

Name some non- conventional energy sources.

Ans 1: Some of the non-conventional energy sources are:
- Energy from tides
- Energy from waves
- Energy from biomass
- Energy from waste products
- Solar Energy
- Geothermal Energy

Question # 2

Define Kinetic energy ?

Ans 1: Kinetic Energy (K.E):The energy in the body due to its motion is known as kinetic energy.

Question # 3

How can you get energy from the waves?

Ans 1: The tides and winds blow across the surface of ocean due to which strong water waves are produced. Professor Salter invented a devices called Salter's duck.It has two parts: duck float and balance float. The wave energy produces the movement in duck float relative to balance float. The relative motion of duck float can be used to run electricity generators.

Question # 4

Define energy ? write the units of energy?

Ans 1: Energy:The capacity of a body to do work is known as energy.
Unit of Energy:Joule, Kilo, Mega joule, kilo watt . hour are the units of energy.

Question # 5

Differentiate between conservative and non- conservative force.

Ans 1: Conservative Force: The force by which work done along a closed path is zero is called conservative force. For Example, gravitational force, electric force and magnetic force.

Non-Conservative Force: The force by which work done along a closed path is not zero is called non-conservative force. For example,frictional force, air resistance and normal force.

Question # 6

What are renewable & non-renewable energy sources? Give example of each .

Ans 1: Renewable energy is derived from natural processes that are replenished constantly . Such as wind tides etc.
Non-renewable energy source is a source that does not renew itself. Such as coal, natural gas etc.

Question # 7

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 # 8

What is a machine ? Discuss the input and output and efficiency of a mechanical machine ?

Ans 1: Machine:A machine is a thing or device with the help of which we can do more work than we can do by hands.
Input of Mechanical machine:The amount of work dine on a machine by a given effort force is known as input of machine.
Input = effort *effort arm
Input = P*d
Output of Mechanical Machine:The amount of work done by a machine on the load (weight) is known as output of the machine
output = load * load arm
output = w*d
Efficiency:The ratio of output and input of a machine is known as efficiency
Efficiency:Output / input
n = w*d/ p*d

Question # 9

Explain briefly about residual heat of the earth.

Ans 1: Hot igneous rocks within 10km of earth's surface are present in molten form They conduct heat energy from interior part of the earth. The temperature of these rocks is 200° C or more.

Question # 10

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

Ans 1: By using semiconductor devices, the solar cell also called photo voltaic cell: sunlight can be directly converted into electricity. These solar cells are made of silicon wafers. Electron in the silicon gain energy from sunlight to create voltage.Voltage can be increased by increasing the number of solar cells.

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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

Name some non- conventional energy sources.

Define Kinetic energy ?

How can you get energy from the waves?

Define energy ? write the units of energy?

Differentiate between conservative and non- conservative force.

What are renewable & non-renewable energy sources? Give example of each .

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

What is a machine ? Discuss the input and output and efficiency of a mechanical machine ?

Explain briefly about residual heat of the earth.

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

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

Name some non- conventional energy sources.

Define Kinetic energy ?

How can you get energy from the waves?

Define energy ? write the units of energy?

Differentiate between conservative and non- conservative force.

What are renewable & non-renewable energy sources? Give example of each .

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

What is a machine ? Discuss the input and output and efficiency of a mechanical machine ?

Explain briefly about residual heat of the earth.

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

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

How can you get energy from the waves?

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

What is geothermal energy? How is it generated ?

How can we gain energy from tides?

What are non-conventional energy sources? Describe briefly.

Differentiate between geyser and aquifer.

Show that work done in a gravitational Field is independent of the path ?

What are the essential conditions for conservative field?

What is solar constant ? What is its value?

What are renewable & non-renewable energy sources? Give example of each .

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

How can we gain energy from tides?

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

Discuss the work-energy principal ?

Define kilowatt hour (kWh).

Write down two sources of energy which are renewable

Name some non- conventional energy sources.

Show that 1 kWh = 3.6x106J

What sort of energy is in the following?A Moving CarA Compressed Spring

Discuss the work done by a variable force ?

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

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

Name some non- conventional energy sources.

Define work and its SI unit.

Write down two sources of energy which are renewable

Define kilowatt hour (kWh).

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

What are renewable & non-renewable energy sources? Give example of each .

How can we gain energy from tides?

Differentiate between geyser and aquifer.

How energy can be obtained from waste products?

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

ICS Part 1 Physics Short Questions Test

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Show that 1 kWh = 3.6x10⁶J

What sort of energy is in the following?
A Moving Car
A Compressed Spring