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Praxis II Physics (5265) Part 1:
Mechanics Questions and Answers Latest Version Already Passed
What is the unit of force in the SI system?✔✔ Newton
What is the acceleration due to gravity near Earth’s surface?✔✔ 9.8 m/s²
What physical quantity is defined as mass times velocity?✔✔ Momentum
What is the net force on an object moving at constant velocity?✔✔ Zero
What type of motion occurs when the net external force on an object is zero?✔✔ Uniform motion
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What law states that an object remains at rest or in motion unless acted on by a net force?✔✔ Newton’s First Law
What is the force that resists the motion of objects sliding past each other?✔✔ Friction
What type of energy does an object possess due to its motion?✔✔ Kinetic energy
What is the relationship between mass and weight?✔✔ Weight equals mass times gravitational acceleration
What quantity is conserved in an isolated system with no external forces?✔✔ Momentum
What is the area under a velocity-time graph?✔✔ Displacement
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What causes centripetal acceleration in circular motion?✔✔ A net inward force
What does Newton’s Second Law state about the relationship between force, mass, and acceleration?✔✔ Force equals mass times acceleration
What is the SI unit of work?✔✔ Joule
What kind of force acts perpendicular to the surface of contact?✔✔ Normal force
What is the change in velocity over time called?✔✔ Acceleration
What is the product of force and displacement in the direction of the force?✔✔ Work
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