Pressure

Q. The SI unit of pressure is ___

Q. A brick is kept in three different orientations on a table as shown in the figure. The pressure exerted by the brick on the table will be __________________.
A B C
[3 marks]
[Exemplar]
[Pressure]

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

Q.

A force of $5N$ is applied on a body over a surface area of 5 $m^2$. Calculate the pressure applied on the surface.

1. $1Pa$

2. $2Pa$

3. $3Pa$

4. $5Pa$

Q.

A sharp knife cuts better than a blunt knife. Which of the following is the correct reason for this?

1. A sharp knife has more surface area and hence applies more pressure
2. A sharp knife has smaller contact surface and hence applies more pressure

3. A sharp knife is costlier than a blunt knife

4. Sharp knives are usually made of silver which has more strength

Q.

What causes winds and cyclones?

1. The difference in air pressure.

2. The difference in temperature.

3. The difference in both temperature and pressure.

4. The depends on the weather.

Q. A thrust of 20 N is acting on an area of 2 $m^2$. How much pressure is acting on the surface?

1. $\text{10 N}{m}^{-2}$
2. $\text{20 N}{m}^{-2}$
3. $\text{40 N}{m}^{-2}$
4. $\text{5 N}{m}^{-2}$

Q. Which physical quantity is measured in the units of pascal?

1. Pressure
2. Energy
3. Thrust
4. Weight

Q. What is the SI unit of pressure?

1. joule
2. newton
3. pascal
4. ampere

Q. Anoop places a cuboid of dimensions $12cm\times 8cm\times 6cm$ with different faces touching the table. Which face, when touching the table, will experience the greatest pressure?

1. 
2. All faces experience the same pressure
3. 
4. 

Q. A cuboidal body of dimensions 2 m $\times$ 3 m $\times$ 4 m is acted upon by a perpendicular force of 50 N on the top surface (2 m $\times$ 3 m) as shown in the figure. Calculate the pressure due to the force on that surface.

1. $\frac{50}{6}Pa$
2. $\frac{50}{12}Pa$
3. $\frac{50}{8}Pa$
4. $\frac{50}{16}Pa$