ICS Part 1 Physics English Medium Chapter 6 Online Short Questions Test with Answers

Question # 1

Explain how the swing is produced in a fast moving cricket ball.

Ans 1: When the cricket ball is thrown in such a way that it spins as well as moves forward, the velocity of the air on one side of the ball increases due to the spin and hence the pressure decrease. So the swing is produced in a fast moving cricket ball.

Question # 2

What are conditions of an ideal fluid?

Ans 1: For an ideal fluid, the conditions are:
1. The fluid is non-viscous.
2. The fluid is incompressible.
3. The fluid motion is steady.

Question # 3

Explain how the lift is produced in an aeroplane?

Ans 1: Aeroplane wing is designed to deflect the air so that streamlines are closer
together above the wing than below it. Thus, air is travelling faster on the upper side of the wing then on the lower. The pressure will be the lower at the top of the wing, and the wing will be forced upward.

Question # 4

Explain what you understand by term Viscosity?

Ans 1: The frictional effect between the layers of the flowing fluid is called viscosity. Viscosity measures, how much force is required to slide one layer of liquide over another layer.
Thick tar and honey have large coefficient of viscosity than water.

Question # 5

Describe the method of measuring human blood pressure.

Ans 1: The blood pressure of a person is measured using a device called sphygmomanometer.
A stethoscope detects the instant at which the external pressure becomes equal to the systolic pressure.At this point, the blood flow through the vessel with very high speed. As a result, the flow is initially turbulent
As the pressure drops, the external pressure eventually equals the diastolic pressure. The flow of the blood switches from turbulent to laminar, and gurgle in the stethoscope disappears. This is the signal to record the diastolic pressure.

Question # 6

Why should Chimney be tall for its better working?

Ans 1: A Chemistry works best when it is tall and exposed to air currents, which reduces the pressure at the top and force the upward flow of smoke.

Question # 7

How an aeroplane is lifted up?

Ans 1: The wing of the aero plane is designed to deflect the air so that the streamlines are closer together above the wing than below it. Thus, air is travelling faster on the upper side of the wing than on the lower . As the result , the pressure will be lower at the top of the wing, and the wing will be forced upward.

Question # 8

Describe any application of Bernoulli's equation.

Ans 1: When the cricket ball is thrown in such a way that is spins as well as moves forward, the velocity of the air on one side of the ball increase due to the spin and hence the pressure decrease, So the swing is produced in a fast moving cricket ball.
And it is just in accordance with Bernoulli' equation.

Question # 9

Write few lines on blood flow.

Ans 1: Blood is an incompressible fluid having density nearly equal to that of water. A high concentration of red blood cells increases its viscosity from three to five times. Blood vessels are not rigid. They stretched like rubber hose.There is tension in the walls of the blood vessels.

Question # 10

Two boats moving parallel in the same direction are pulled toward each other.

Ans 1: According to Bernoulli's equation, where the speed is high, pressure will be low.So the pressure between the two boats decreases as compared to the pressure of sideway. So the side way high pressure pushes the two boat towards each other.

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ICS Part 1 Physics English Medium Chapter 6 Online Short Questions Test with Answers

Online Short Questions For Chapter 6 "ICS Part 1 Physics Chapter 6 Short Questions Test "

Physics - ICS Part 1 Physics Chapter 6 Short Questions Test

Explain how the swing is produced in a fast moving cricket ball.

What are conditions of an ideal fluid?

Explain how the lift is produced in an aeroplane?

Explain what you understand by term Viscosity?

Describe the method of measuring human blood pressure.

Why should Chimney be tall for its better working?

How an aeroplane is lifted up?

Describe any application of Bernoulli's equation.

Write few lines on blood flow.

Two boats moving parallel in the same direction are pulled toward each other.

Prepare Complete Set Wise Questions For Chapter 6 "ICS Part 1 Physics Chapter 6 Short Questions Test "

Set 1

ICS Part 1 Physics Chapter 6 Short Questions Test - Set 1

Explain how the swing is produced in a fast moving cricket ball.

What are conditions of an ideal fluid?

Explain how the lift is produced in an aeroplane?

Explain what you understand by term Viscosity?

Describe the method of measuring human blood pressure.

Why should Chimney be tall for its better working?

How an aeroplane is lifted up?

Describe any application of Bernoulli's equation.

Write few lines on blood flow.

Two boats moving parallel in the same direction are pulled toward each other.

ICS Part 1 Physics Short Questions Test

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