ICS Part 1 Physics English Medium Chapter 5 Online Short Questions Test with Answers

Online Short Questions For Chapter 5 "ICS Part 1 Physics Chapter 5 Short Questions Test "

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Physics - ICS Part 1 Physics Chapter 5 Short Questions Test

Question # 1

State the right hand rule to find the direction of angular displacement.

Ans 1: It states that
"Grasp the axis of rotation in right hand with the fingers curling in the direction of rotation , then the erect thumb will give the direction of angular velocity and angular momentum"

Question # 2

What are geostationary orbit and geostationary satellites?

Ans 1: Geostationary Orbit: An orbit in which the time period of satellite is equal to the time period of spin motion of the earth is called geostationary orbit.

Geostationary Satellites: A satellite whose orbital motion is stationary along the earth is called geostationary satellite.

Question # 3

What is meant by moment of inertia? Explain its significance.

Ans 1: The product of mass of the particle and square of its perpendicular distance from the axis of rotation is called the moment of inertia.

I =mr²
^{The moment of inertia plays the same role in angular motion as the mass in linear motion.}

Question # 4

Write down application of communication satellites.

Ans 1: A satellite communication system consist of three geo-stationary satellites.There are over 200 Earth stations which can transmit and receive signals.INTELSAT-VI operates at microwave frequencies 4, 4, 11 and 14 Ghz and has a capacity of 30,000 two way telephone circuits plus three TV channels.
Geo-stationary satellite are very useful for worldwide communication,weather observation, navigation, and other military uses.

Question # 5

Explain how many minimum number of Geo-stationary satellites are required for global coverage of T.V transmission.

Ans 1: A geostationary satellite covers 120° of longitude. So the whole earth can be covered by three correctly positioned geostationary satellites.

Question # 6

Define angular momentum and give its dimension.

Ans 1:

Question # 7

What is meant by INTEL SAT? At what frequencies the INELSAT-VI operates ?

Ans 1: The largest satellite system managed by 126 countries is international. Telecommunication Satellite Organization (INTELSAT).
The INELSAT-VI operates at microwaves frequencies of 4, 6, 11 and 14 Ghz.

Question # 8

State the direction of the following vectors in simple situation:
A) Angular Momentum B) Angular Velocity

Ans 1: The direction of angular momentum and angular velocity can be determined by right hand rule;
"Grasp the axis of rotation in right hand with the figures curling in the direction of rotation, then the erect thumb will give the direction of angular velocity and angular momentum."

Question # 9

Define angular velocity, How its direction is determined?

Ans 1: The rate of change of angular displacement is called angular velocity. The direction of angular velocity is along the axis of rotation and can be determined by right hand rule:
"Grasp the axis of rotation in right hand with the figures curling in the direction of rotation then the erect thumb will give the direction of angular velocity."

Question # 10

An object orbiting around the earth in said to be a freely falling body. Why?

Ans 1: An object in orbits is said to be freely falling , because the trajectory of its fall has the same curvature as Earth's surface. In fact, the object is falling towards the center of earth but because of spherical shape of earth, it never reaches the surface of earth.

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Prepare Complete Set Wise Questions For Chapter 5 "ICS Part 1 Physics Chapter 5 Short Questions Test "

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Set 2

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Set 3

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ICS Part 1 Physics Chapter 5 Short Questions Test - Set 1

Question # 1

State the right hand rule to find the direction of angular displacement.

Ans 1: It states that
"Grasp the axis of rotation in right hand with the fingers curling in the direction of rotation , then the erect thumb will give the direction of angular velocity and angular momentum"

Question # 2

What are geostationary orbit and geostationary satellites?

Ans 1: Geostationary Orbit: An orbit in which the time period of satellite is equal to the time period of spin motion of the earth is called geostationary orbit.

Geostationary Satellites: A satellite whose orbital motion is stationary along the earth is called geostationary satellite.

Question # 3

What is meant by moment of inertia? Explain its significance.

Ans 1: The product of mass of the particle and square of its perpendicular distance from the axis of rotation is called the moment of inertia.

I =mr²
^{The moment of inertia plays the same role in angular motion as the mass in linear motion.}

Question # 4

Write down application of communication satellites.

Ans 1: A satellite communication system consist of three geo-stationary satellites.There are over 200 Earth stations which can transmit and receive signals.INTELSAT-VI operates at microwave frequencies 4, 4, 11 and 14 Ghz and has a capacity of 30,000 two way telephone circuits plus three TV channels.
Geo-stationary satellite are very useful for worldwide communication,weather observation, navigation, and other military uses.

Question # 5

Explain how many minimum number of Geo-stationary satellites are required for global coverage of T.V transmission.

Ans 1: A geostationary satellite covers 120° of longitude. So the whole earth can be covered by three correctly positioned geostationary satellites.

Question # 6

Define angular momentum and give its dimension.

Ans 1:

Question # 7

What is meant by INTEL SAT? At what frequencies the INELSAT-VI operates ?

Ans 1: The largest satellite system managed by 126 countries is international. Telecommunication Satellite Organization (INTELSAT).
The INELSAT-VI operates at microwaves frequencies of 4, 6, 11 and 14 Ghz.

Question # 8

State the direction of the following vectors in simple situation:
A) Angular Momentum B) Angular Velocity

Ans 1: The direction of angular momentum and angular velocity can be determined by right hand rule;
"Grasp the axis of rotation in right hand with the figures curling in the direction of rotation, then the erect thumb will give the direction of angular velocity and angular momentum."

Question # 9

Define angular velocity, How its direction is determined?

Ans 1: The rate of change of angular displacement is called angular velocity. The direction of angular velocity is along the axis of rotation and can be determined by right hand rule:
"Grasp the axis of rotation in right hand with the figures curling in the direction of rotation then the erect thumb will give the direction of angular velocity."

Question # 10

An object orbiting around the earth in said to be a freely falling body. Why?

Ans 1: An object in orbits is said to be freely falling , because the trajectory of its fall has the same curvature as Earth's surface. In fact, the object is falling towards the center of earth but because of spherical shape of earth, it never reaches the surface of earth.

Submit

ICS Part 1 Physics Chapter 5 Short Questions Test - Set 2

Question # 1

Why is the axis of rotation of Earth remains fixed in one direction with respect to the universe around it?

Ans 1: The major force acting on Earth is the pull of the Sun and no other sizeable toque is experienced by it. The Earth's axis of rotation, therefore remains fixed in one direction with reference to the universe around us.

Question # 2

What is meant by centripetal force? Write down its formula.

Ans 1:

Question # 3

Define angular displacement and write its S.I unit.

Ans 1:

Question # 4

What is mean by angular momentum?

Ans 1:

Question # 5

What are geostationary orbit and geostationary satellites?

Ans 1: Geostationary Orbit: An orbit in which the time period of satellite is equal to the time period of spin motion of the earth is called geostationary orbit.

Geostationary Satellites: A satellite whose orbital motion is stationary along the earth is called geostationary satellite.

Question # 6

Write down application of communication satellites.

Ans 1: A satellite communication system consist of three geo-stationary satellites.There are over 200 Earth stations which can transmit and receive signals.INTELSAT-VI operates at microwave frequencies 4, 4, 11 and 14 Ghz and has a capacity of 30,000 two way telephone circuits plus three TV channels.
Geo-stationary satellite are very useful for worldwide communication,weather observation, navigation, and other military uses.

Question # 7

Explain how many minimum number of Geo-stationary satellites are required for global coverage of T.V transmission.

Ans 1: A geostationary satellite covers 120° of longitude. So the whole earth can be covered by three correctly positioned geostationary satellites.

Question # 8

Explain the difference between tangential velocity and angular velocity.

Ans 1: The linear velocity of a particle moving along a curve or circle is called tangential velocity. Its direction is always along the tangent to the circle.
The rate of change of angular displacement is called angular velocity.The direction of angular velocity is along the axis of rotation of the body by right hand rule. V= rw

Question # 9

How is artificial gravity created?

Ans 1: Artificial gravity is the gravity like effect produced in an orbiting spaceship to overcome weightlessness.To create artificial gravity the spaceship is set into rotation around its own axis. The astronaut then is presses towards the outer rim and exerts a force on the floor of the spaceship in much the same way as on the earth.

Question # 10

State the direction of the following vectors in simple situation:
A) Angular Momentum B) Angular Velocity

Ans 1: The direction of angular momentum and angular velocity can be determined by right hand rule;
"Grasp the axis of rotation in right hand with the figures curling in the direction of rotation, then the erect thumb will give the direction of angular velocity and angular momentum."

Submit

ICS Part 1 Physics Chapter 5 Short Questions Test - Set 3

Question # 1

Define angular displacement and write its S.I unit.

Ans 1:

Question # 2

An object orbiting around the earth in said to be a freely falling body. Why?

Ans 1: An object in orbits is said to be freely falling , because the trajectory of its fall has the same curvature as Earth's surface. In fact, the object is falling towards the center of earth but because of spherical shape of earth, it never reaches the surface of earth.

Question # 3

Define angular displacement.

Ans 1:

Question # 4

Explain the difference between tangential velocity and angular velocity.

Ans 1: The linear velocity of a particle moving along a curve or circle is called tangential velocity. Its direction is always along the tangent to the circle.
The rate of change of angular displacement is called angular velocity.The direction of angular velocity is along the axis of rotation of the body by right hand rule. V= rw

Question # 5

When mud files off the tyre of a moving bicycle, I what direction does it fly?

Ans 1: Adhesive force between mud and tire is weal. When the mud files off the tyre of a moving bicycle, it always files along the tangent to the tyre. Because linear velocity is always tangent to the circle.

Question # 6

What is meant by INTEL SAT? At what frequencies the INELSAT-VI operates ?

Ans 1: The largest satellite system managed by 126 countries is international. Telecommunication Satellite Organization (INTELSAT).
The INELSAT-VI operates at microwaves frequencies of 4, 6, 11 and 14 Ghz.

Question # 7

What are geostationary orbit and geostationary satellites?

Ans 1: Geostationary Orbit: An orbit in which the time period of satellite is equal to the time period of spin motion of the earth is called geostationary orbit.

Geostationary Satellites: A satellite whose orbital motion is stationary along the earth is called geostationary satellite.

Question # 8

What is meant by moment of inertia? Explain its significance.

Ans 1: The product of mass of the particle and square of its perpendicular distance from the axis of rotation is called the moment of inertia.

I =mr²
^{The moment of inertia plays the same role in angular motion as the mass in linear motion.}

Question # 9

On what factors moment of inertia depends?

Ans 1: The moment of inertia is I =mr²
^{So it depends upon the mass of the body and its distance from the axis of rotation.}

Question # 10

Define centripetal force; write its formula and unit.

Ans 1:

Submit

Physics

5th Chapter

ICS Part 1 Physics Short Questions Test

Here you can prepare ICS Part 1 Physics English Medium Chapter 5. Click the button for 100% free full practice test.

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Chapter 1

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ICS Part 1 Physics English Medium Chapter 5 Online Short Questions Test with Answers

Online Short Questions For Chapter 5 "ICS Part 1 Physics Chapter 5 Short Questions Test "

Physics - ICS Part 1 Physics Chapter 5 Short Questions Test

State the right hand rule to find the direction of angular displacement.

What are geostationary orbit and geostationary satellites?

What is meant by moment of inertia? Explain its significance.

Write down application of communication satellites.

Explain how many minimum number of Geo-stationary satellites are required for global coverage of T.V transmission.

Define angular momentum and give its dimension.

What is meant by INTEL SAT? At what frequencies the INELSAT-VI operates ?

State the direction of the following vectors in simple situation:A) Angular Momentum B) Angular Velocity

Define angular velocity, How its direction is determined?

An object orbiting around the earth in said to be a freely falling body. Why?

Prepare Complete Set Wise Questions For Chapter 5 "ICS Part 1 Physics Chapter 5 Short Questions Test "

Set 1

Set 2

Set 3

ICS Part 1 Physics Chapter 5 Short Questions Test - Set 1

State the right hand rule to find the direction of angular displacement.

What are geostationary orbit and geostationary satellites?

What is meant by moment of inertia? Explain its significance.

Write down application of communication satellites.

Explain how many minimum number of Geo-stationary satellites are required for global coverage of T.V transmission.

Define angular momentum and give its dimension.

What is meant by INTEL SAT? At what frequencies the INELSAT-VI operates ?

State the direction of the following vectors in simple situation:A) Angular Momentum B) Angular Velocity

Define angular velocity, How its direction is determined?

An object orbiting around the earth in said to be a freely falling body. Why?

ICS Part 1 Physics Chapter 5 Short Questions Test - Set 2

Why is the axis of rotation of Earth remains fixed in one direction with respect to the universe around it?

What is meant by centripetal force? Write down its formula.

Define angular displacement and write its S.I unit.

What is mean by angular momentum?

What are geostationary orbit and geostationary satellites?

Write down application of communication satellites.

Explain how many minimum number of Geo-stationary satellites are required for global coverage of T.V transmission.

Explain the difference between tangential velocity and angular velocity.

How is artificial gravity created?

State the direction of the following vectors in simple situation:A) Angular Momentum B) Angular Velocity

ICS Part 1 Physics Chapter 5 Short Questions Test - Set 3

Define angular displacement and write its S.I unit.

An object orbiting around the earth in said to be a freely falling body. Why?

Define angular displacement.

Explain the difference between tangential velocity and angular velocity.

When mud files off the tyre of a moving bicycle, I what direction does it fly?

What is meant by INTEL SAT? At what frequencies the INELSAT-VI operates ?

What are geostationary orbit and geostationary satellites?

What is meant by moment of inertia? Explain its significance.

On what factors moment of inertia depends?

Define centripetal force; write its formula and unit.

ICS Part 1 Physics Short Questions Test

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State the direction of the following vectors in simple situation:
A) Angular Momentum B) Angular Velocity

State the direction of the following vectors in simple situation:
A) Angular Momentum B) Angular Velocity

State the direction of the following vectors in simple situation:
A) Angular Momentum B) Angular Velocity