Thrust

Q. The force acting perpendicular to a surface is called.

1. weight
2. thrust
3. gravity

Q.

Give 5 difference between thrust and pressure .

Q.

State Pascal's law. Give a simple experiment to demonstrate this law.

Q.

Write SI unit of force and pressure?

Q.

What is Pascal's law?

Q. a cubical block of mass 2.5 kg is kept on a levelled horizontal surface. if it exerts a pressure of 100pa on the surface then find the volume of the block .

Q. A brick is kept in three different ways on a table as shown in the given figure. The pressure exerted by the brick on the table will be:

1. maximum in position A
2. maximum in position B
3. equal in all the cases
4. maximum in position C

Q.

Army tanks are provided with caterpillar tracks.What is the reason for this?

Q.

Why solid exerts pressure explain with a example

Q.

Pressure is

1. inversely proportional to thrust, directly proportional to area.

2. directly proportional to thrust, directly proportional to area.

3. directly proportional to thrust, inversely proportional to area

4. inversely proportional to thrust, inversely proportional to area.

Q.

If Density = Mass/Volume, what is Volume =?, What is mass =?

If Pressure= Force/Area, what is area =?, What is force =?

Q. A cube of side x rests on a floor. Given that the pressure exerted by the cube on the floor is P, what will be the pressure exerted by the cube of the same material of side 4x?(take g=10m/s^2).
(A)P
(B) 2p
(C)4p
(D)16P

Q.

Thrust on the unit surface area is called:

1. Pressure

2. Moment of force

3. Couple

4. Momentum

Q.

Across an opening 40 m wide, dam A holds back a body of water that is 80 m deep. Across an opening 80 m wide, dam B holds back a body of water that is 40 m deep. Which dam experiences a greater total force on its surface?​

1. Dam A

2. Dam B

3. Both dams experience equal total force

4. Both dams experience equal net force

Q.

A force of $100\mathrm{N}$ is applied on a nail of area $0.001\mathrm{sq}.\mathrm{cm}$. What is the thrust?

Q.

How is the effect of force exerted on a body measured?

Q.

Suppose you go to an amusement park and there you find a ride called the rotor the circular room is spinning and you and other riders are stuck to the circular wall we know earth pull all object towards it then why don't people fall even when though there is no floor to support you

Q. What are the laws of liquid pressure?

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Q. Direction of force of tension by rope is __.

1. outward
2. diagonal
3. arbitrary
4. inward

Q.

While standing inside the water up to the waist height, it is very difficult to keep our feet under control. Why?

Q. Army tanks are provided with Caterpillar tracks .what is the reason for this

Q. How much thrust will be required to exert a pressure of $20000Pa$ on an area of $1c{m}^2$?

1. $1N$
2. $2N$
3. $200N$
4. $100N$

Q.

Where does a person find easier to swim- in a sea water or in a river water? Give reason for your answer.

Q. A brick is kept in three different ways on a table as shown in the given figure. The pressure exerted by the brick on the table will be:

1. maximum in position A
2. equal in all the cases
3. maximum in position B
4. maximum in position C

Q. Explain why a wide steel belt is provided over the army tank

Q. Identify the thrust among the three different forces applied on the box as shown in the figure.

1. 
2. 
3. 

Q. If you dip your open palm in a bucket full of water, you feel your hand being pushed up? Why?

Q. Direction of force of tension by rope is __.

1. arbitrary
2. inward
3. outward
4. diagonal

Q. Which of the following objects exerts the maximum pressure on the floor? (All objects have the same weight)

1. Object Q
2. Object P
3. Object S
4. Object R

Q.

Why is it easier to swim in sea water than in river water ?