Turning effect of Force & Pressure

Torque = ________

• Force / distance

• Force × distance

• Distance / Force

• Force / Area

Unit of pressure in SI unit is ________.

• N / m

• m / N²

• N / m²

• m / N

Turning effect of force is ________.

• torque

• moment of force

• balancing moment

• couple

Moment can be calculated using the equation:

• M = F × d

• M = F / d

• M = F² × d

• M = F / d²

Liquids always flow from ________.

• a lower to higher level

• a higher to lower level

• the same level

• a higher level to an even higher level

One Pascal is the pressure generated by ___________.

• force of 1 N on an area of 1 m²

• force of 1 kgf on an area of 1 m²

• force of 1 N on an area of 1000 m²

• force of 1 N on an area of 1 cm²

A syringe works due to ______.

• gas pressure

• pressure

• atmospheric pressure

• liquid pressure

Two boys exert force of 40 N and 60 N in opposite directions on an object. The magnitude of the resultant force is ________.

• 20 N

• 200 N

• 40 N

• 240 N

Formula for calculating Pressure is:

• Pressure = Thrust / Area

• Pressure = Thrust × distance

• Pressure = Thrust × distance

• Pressure = Area / Thrust

A force of 1200 N acts on a surface of area 10 cm² normally. What would be the thrust and pressure on the surface?

• 12 × 10⁶ N/m²

• 2 × 10⁶ N/m²

• 1.2 × 10⁶ N/m²

• 1.2 × 10⁴ N/m²