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Praxis II physics (5265) Part 1:
Mechanics Questions and Answers Latest Version Graded A+
What is the unit of force in the SI system?✔✔Newton
What quantity is defined as mass times acceleration?✔✔Force
What is the net force acting on an object in equilibrium?✔✔Zero
What is the acceleration due to gravity near Earth’s surface?✔✔9.8 m/s²
What is the tendency of an object to resist changes in its motion?✔✔Inertia
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What is the rate of change of velocity called?✔✔Acceleration
What law states that for every action there is an equal and opposite reaction?✔✔Newton’s Third Law
What is the scalar quantity that represents the total path length traveled?✔✔Distance
What is the vector quantity that describes the change in position?✔✔Displacement
What type of motion occurs when the net force on an object is zero?✔✔Uniform motion
What is the term for the force that opposes the motion of two surfaces sliding past each other?✔✔Friction
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What is the product of force and displacement in the direction of the force?✔✔Work
What is the energy associated with the motion of an object?✔✔Kinetic energy
What is the energy stored in an object due to its position?✔✔Potential energy
What is the principle that states energy cannot be created or destroyed?✔✔Conservation of energy
What is the unit of work in the SI system?✔✔Joule
What is the power output of a machine that does 100 joules of work in 2 seconds?✔✔50 watts
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