Thrust

Q.

A vessel of base area 100cm * 60 cm and height 200 cm is completely filled with a liquid of density $1.1\times {10}^{3}kg/m^3$. Find the thrust a the bottom of the vessel ignoring the atmospheric pressure.

1. $1.294\times {10}^4$

2. $1.294\times {10}^3$

3. $1.294\times {10}^5$

4. $1.294\times {10}^2$

Q.

What is thrust and how it is related to pressure

Q.

Thrust is a ___ quantity.

Q. A push or a pull on an object is termed as application of:

1. Pressure
2. Force
3. All of the above
4. Momentum

Q. What is the difference between thrust and pressure?

Q.

Define thrust. What is its SI unit?

Q.

what is the difference between thrust and pressure?

Q. A cube of density $800kg{m}^{-3}$ is floating in water. Volume of the cube is $2m^3$. Calculate the force of buoyancy acting on the body.
Density of water: ${\rho }_{water}=1000kg{m}^{-3}$

Q. Thrust per unit area is called pressure.

1. True
2. False

Q. Thrust per unit area is called pressure.

1. True
2. False

Q. As the volume of an object immersed in a fluid increases, the buoyancy acting on it will:

1. Decrease
2. Remain same
3. Increase
4. Become zero

Q. A body weighs $50N$ in air and it weighs $40N$ when immersed in water. Find out the force of buoyancy acting on the body in water.

1. $10N$, downward direction
2. $90N$, downward direction
3. $90N$, upward direction
4. $10N$, upward direction

Q. An object is said to be in equilibrium ___.

1. if the forces are acting on it in one direction only
2. only if there is no force acting on it
3. if the net force acting on it is zero
4. if the body constantly changes its direction of motion

Q. Which of the following is the SI unit of thrust?

1. meter
2. dyne
3. newton
4. kelvin

Q. A buggy ABC of shape as shown in the figure is filled with water. Which of the following statements is NOT correct?

1. Average pressure on surfaces A and C is the same.
2. Pressure on surface B is greater than average pressure on surface A.
3. Force due to hydrostatic pressure on surface C is greater than that on surface A
4. The buggy moves to the right on its own.

Q. A body weighs 40 g in air. If its volume is 10 cc in water it will weigh:

1. 30 g
2. 40 g
3. 50 g
4. none of the above

Q.

The force that acts normally over a surface is called thrust?

1. True
2. False

Q.

How is thrust different from pressure?

1. Thrust is the force per unit area but pressure is the force perpendicular to that area

2. Pressure is the force per unit area but thrust is the force perpendicular to that area

3. Both are same

4. None of these

Q. For a constant thrust, the pressure increases, if what is decreased?

1. Mass
2. Contact area
3. Density
4. Weight

Q. Thrust is the force acting on an object perpendicular to its surface.

1. False
2. True

Q. The total force exerted by a body perpendicular to a surface is called.

1. Pressure
2. Thrust
3. Impulse
4. Collision