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MomentsdensityPressure MCQ2

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Questions and Answers

What is the formula for the moment of a force?

M = F + d

M = F × d (correct)

M = F - d

M = F / d

What is the turning effect of a force called?

Acceleration

Moment (correct)

Velocity

Torque

What does Law 1 of Equilibrium state?

The sum of forces is not zero

The vector sum of forces in any direction is zero (correct)

Clockwise moments equal anti-clockwise moments

The vector sum of moments is zero

According to Archimedes Principle, what force is experienced by a body immersed in a fluid?

Upthrust equal to the weight of the fluid displaced Signup and view all the answers

Which law states that pressure is inversely proportional to volume for a fixed mass of gas at constant temperature?

Boyle's Law Signup and view all the answers

What keeps the moon orbiting the earth and the earth attached to its atmosphere?

Force of gravity Signup and view all the answers

According to Boyle's Law, how does pressure vary with volume for a fixed mass of gas at constant temperature?

$p \propto \frac{1}{V}$ Signup and view all the answers

What is the formula for pressure in a fluid at a given depth?

p = ρgh Signup and view all the answers

What force is responsible for keeping the Earth's atmosphere attached to Earth?

Force of gravity Signup and view all the answers

According to Newton's Law of Universal Gravitation, how does the force between two point masses vary with distance?

Inversely proportional to square of distance Signup and view all the answers

What is the Formual for pressure

P = F/A Signup and view all the answers

What is the second law of equilibrium?

The sum of the moments about any point is zero Signup and view all the answers