BTEC Engineering Mechanical Principles Quiz

What is the formula to calculate force if mass and acceleration are known?

What is the mechanical advantage of a lever with an effort arm of 5m and a load arm of 2m?

• 2.5

• 0.4

• 5

• 10

Which type of friction occurs when an object rolls over a surface?

• Sliding friction

• Rolling friction

• Static friction

• Fluid friction

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

• Newton

• Joule

• Watt

• Pascal

What is the principle of conservation of energy?

• Energy can be created but not destroyed

• Energy can neither be created nor destroyed, but it can change forms

• Energy can be destroyed but not created

• Energy can be transferred by heat only

Which device is used to measure pressure?

• Ammeter

• Voltmeter

• Manometer

• Anemometer

What is the formula for calculating mechanical advantage in a pulley system?

• The number of supporting ropes

• The radius of the pulley

• The weight of the load divided by the effort

• The distance moved by the effort divided by the distance moved by the load

What is the effect of lubrication between two surfaces?

• Increases friction

• Decreases friction

• Does not affect friction

• Initially increases then decreases friction

What is the formula for kinetic energy?

What is the term for the rate of doing work or the rate of using energy?

• Force

• Power

• Momentum

• Velocity