Revision Quiz on Forces and Equilibrium

What does statics relate to?

• Forces, gravity, and mass

• Objects at rest in equilibrium

• Chemical reactions

• Moving objects

What is the formula for calculating weight force?

• Fw = m + g

• Fw = m / g

• Fw = mg

• Fw = g - m

What is the measure of the pushing or pulling effort of a force called?

• Direction

• Magnitude

• Line of action

• Point of application

What is the straight line along which a force acts called?

• Point of application

• Magnitude

• Line of action

• Reaction

What does the principle of transmissibility state about a force?

• It can change its magnitude.

• It can change its direction.

• It can be moved along its line of action without changing its effect.

• It can be split into components.

Newton's 3rd law states

• Forces are transmissible

• Forces come in pairs and are equal and opposite

• Force equals mass times gravity

• Forces are split into components

What is the common point where forces intersect called?

• Point of divergence

• Point of concurrency

• Point of isolation

• Point of parallelism

What does it mean when forces are described as transmissible?

• Forces can be transferred to another object.

• Forces can be moved along their line of action without changing their effect.

• Forces can change direction.

• Forces can increase in magnitude.

What is the purpose of a free-body diagram?

• To calculate the energy efficiency of a system.

• To simplify the representation of a system and its forces.

• To create a 3D model of a system.

• To measure the temperature changes in a system.

What is the unit of force in the International System of Units (SI)?

• Joule

• Newton

• Watt

• Pascal