Mechanical
 1. What is the SI unit of force?A) PascalB) JouleC) NewtonD) Watt2. Which law states that for every action, there is an equal and opposite reaction?A) Law of Conservation of EnergyB) Newton's Third Law of MotionC) Newton's First Law of MotionD) Newton's Second Law of Motion3. What type of energy is associated with the motion of objects?A) Kinetic energyB) Thermal energyC) Potential energyD) Mechanical energy4. Which component of a machine changes the direction of a force?A) Wheel and axleB) GearC) ScrewD) Pulley5. What term refers to the rate at which work is done?A) VelocityB) EnergyC) ForceD) Power6. Which of the following is a unit of pressure?A) PascalB) NewtonC) JouleD) Watt7. Which law states that an object will remain at rest or in uniform motion unless acted upon by an external force?A) Newton's Third Law of MotionB) Law of Conservation of EnergyC) Newton's First Law of MotionD) Newton's Second Law of Motion8. What is the formula for calculating mechanical advantage in a simple machine?A) Input distance × Output forceB) Output force ÷ Input forceC) Input force × Output distanceD) Output distance ÷ Input distance9. Which type of energy is stored in an object due to its position or state?A) Potential energyB) Thermal energyC) Mechanical energyD) Kinetic energy10. What is the unit of work and energy equivalent to one joule per second?A) NewtonB) WattC) PascalD) Hertz11. Which force resists the relative motion of surfaces in contact with one another?A) FrictionB) GravityC) BuoyancyD) Tension12. Which term refers to potential energy stored in objects at rest in a gravitational field?A) Elastic potential energyB) Chemical potential energyC) Gravitational potential energyD) Nuclear potential energy13. Which of the following is a compound machine?A) ScrewdriverB) WrenchC) ScissorsD) Bicycle14. Which law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass?A) Law of Conservation of EnergyB) Newton's Third Law of MotionC) Newton's First Law of MotionD) Newton's Second Law of Motion15. What simple machine can be described as an inclined plane that moves?A) Wheel and axleB) PulleyC) ScrewD) Wedge16. Which material is commonly used in the construction of gears?A) Carbon fiberB) SteelC) PlasticD) Aluminum17. What property of a material describes its ability to deform under stress?A) DensityB) HardnessC) ElasticityD) Viscosity18. Which type of brake system uses hydraulic pressure to transfer force from the brake pedal to the brake pads?A) Mechanical brake systemB) Hydraulic brake systemC) Drum brake systemD) Regenerative brake system19. Which type of motor converts electrical energy into mechanical energy through the interaction of magnetic fields?A) Steam engineB) Hydraulic motorC) Electric motorD) Combustion engine20. Which type of coupling is used to connect two shafts that are slightly misaligned?A) Gear couplingB) Rigid couplingC) Fluid couplingD) Flexible coupling
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