Mechanical Principles and Systems Quiz
Test your knowledge on Pascal's law, mechanical advantage, friction, Hooke's law & more. Get ready for your mechanics exam!
#1
Which of the following devices converts mechanical energy into electrical energy?
Generator
Motor
Turbine
Thermocouple
#2
Which of the following statements regarding friction is true?
Friction always opposes the motion of an object.
Friction depends only on the weight of the object.
Frictional force is independent of the nature of the surfaces in contact.
Friction is always kinetic.
#3
Which of the following is NOT a type of lever?
First-class lever
Second-class lever
Third-class lever
Fourth-class lever
#4
Which of the following is NOT a type of simple machine?
Pulley
Inclined plane
Gear
Wedge
#5
What is the SI unit of torque?
Watt
Newton
Joule
Newton-meter
#6
Which of the following best describes Pascal's law?
Pressure applied to a confined fluid is transmitted undiminished to every point of the fluid and to the walls of its container.
Pressure applied to a confined fluid increases with the depth of the fluid.
The buoyant force acting on an object submerged in a fluid is equal to the weight of the fluid displaced by the object.
The rate of change of momentum of a body is directly proportional to the force causing it and takes place in the direction of that force.
#7
What is the principle behind the operation of a hydraulic jack?
Archimedes' principle
Boyle's law
Pascal's law
Newton's second law
#8
What is the formula for calculating mechanical advantage in a simple machine?
Output force / Input force
Input force / Output force
Output distance / Input distance
Input distance / Output distance
#9
What is the principle behind the functioning of a gear train?
Law of conservation of energy
Archimedes' principle
Newton's third law
Law of torque
#10
What does Hooke's law describe?
The relationship between the volume and pressure of a gas at constant temperature.
The force required to accelerate an object.
The restoring force exerted by a spring when it is stretched or compressed.
The force experienced by a charged particle in an electric field.
#11
What does the term 'moment of inertia' refer to in mechanics?
The tendency of a body to resist angular acceleration.
The force experienced by a body submerged in a fluid.
The ratio of the density of a substance to the density of water.
The measure of the effectiveness of a lever system in overcoming resistance.
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