Forces and Motion Online Test Complete all three sections below, then click "Submit for Marking" at the bottom to check your score. Part A: Multiple Choice (10 Questions) 1. What is the standard SI unit of force? A) Newton (N) B) Joule (J) C) Watt (W) D) Kilogram (kg) 2. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net force. This is Newton's: A) Third Law B) First Law C) Second Law D) Law of Universal Gravitation 3. Which mathematical formula correctly represents Newton's Second Law of Motion? A) F = m / a B) F = w * d C) F = m * a D) F = v / t 4. Which force actively opposes motion between two surfaces in contact? A) Gravity B) Air Resistance C) Magnetism D) Friction 5. The rate of change of an object's velocity over time is known as: A) Acceleration B) Speed C) Distance D) Inertia 6. When you jump off a small boat into the water, the boat recoils backward. This is a demonstration of Newton's: A) First Law B) Second Law C) Third Law D) Law of Conservation of Energy 7. What is the approximate acceleration due to gravity on Earth's surface? A) 1.6 m/s² B) 9.8 m/s² C) 5.5 m/s² D) 12.0 m/s² 8. Which of the following is a vector quantity (having both magnitude and direction)? A) Speed B) Mass C) Time D) Velocity 9. Which property describes the measure of the amount of matter in an object? A) Mass B) Weight C) Volume D) Density 10. An object moving in a circular path experiences a net force pointing toward the center. This is called a: A) Centrifugal force B) Centripetal force C) Gravitational force D) Normal force Part B: Short Answer (10 Questions) Provide a one-word answer for each question. Spelling counts! (Case-insensitive) 11. What force pulls objects downward toward the center of the Earth? 12. What quantity is calculated as the product of an object's mass and its velocity? 13. In physics, any push or pull on an object is defined as a: 14. What property of matter makes it resist changes to its state of motion? 15. What SI unit measures energy or work done by a force? 16. What term describes the speed of an object in a specific, designated direction? 17. What scalar quantity represents total distance traveled divided by elapsed time? 18. What term represents the force on an object due to gravity (mass times gravity)? 19. What type of pulling force is transmitted through a stretched rope, string, or cable? 20. What is the state of an object when the net external force acting on it is zero? Part C: Matching (10 Questions) Match each description on the left with the correct term on the right. Select your choice from the dropdown menus. List of Terms (Match to Descriptions below): A. Gravity B. Kinetic C. Net Force D. Acceleration E. Friction F. Kilogram G. Buoyant Force H. Vacuum I. Power J. Speed 21. To speed up, slow down, or change directions. -- Choose Option -- A. Gravity B. Kinetic C. Net Force D. Acceleration E. Friction F. Kilogram G. Buoyant Force H. Vacuum I. Power J. Speed 22. The rate at which an object covers distance. -- Choose Option -- A. Gravity B. Kinetic C. Net Force D. Acceleration E. Friction F. Kilogram G. Buoyant Force H. Vacuum I. Power J. Speed 23. Force that acts to resist sliding motion between surfaces. -- Choose Option -- A. Gravity B. Kinetic C. Net Force D. Acceleration E. Friction F. Kilogram G. Buoyant Force H. Vacuum I. Power J. Speed 24. The basic SI unit used to measure mass. -- Choose Option -- A. Gravity B. Kinetic C. Net Force D. Acceleration E. Friction F. Kilogram G. Buoyant Force H. Vacuum I. Power J. Speed 25. Upward force exerted by a fluid on an object floating in it. -- Choose Option -- A. Gravity B. Kinetic C. Net Force D. Acceleration E. Friction F. Kilogram G. Buoyant Force H. Vacuum I. Power J. Speed 26. Space entirely empty of matter, presenting zero air friction. -- Choose Option -- A. Gravity B. Kinetic C. Net Force D. Acceleration E. Friction F. Kilogram G. Buoyant Force H. Vacuum I. Power J. Speed 27. Rate at which work is done or energy is transformed. -- Choose Option -- A. Gravity B. Kinetic C. Net Force D. Acceleration E. Friction F. Kilogram G. Buoyant Force H. Vacuum I. Power J. Speed 28. The vector sum of all forces working on a single object. -- Choose Option -- A. Gravity B. Kinetic C. Net Force D. Acceleration E. Friction F. Kilogram G. Buoyant Force H. Vacuum I. Power J. Speed 29. Attractive force between any two objects that have mass. -- Choose Option -- A. Gravity B. Kinetic C. Net Force D. Acceleration E. Friction F. Kilogram G. Buoyant Force H. Vacuum I. Power J. Speed 30. Type of mechanical energy possessed by an object in motion. -- Choose Option -- A. Gravity B. Kinetic C. Net Force D. Acceleration E. Friction F. Kilogram G. Buoyant Force H. Vacuum I. Power J. Speed Test Marked Successfully! 0 / 30 0% Grade: - Question Performance Results: Submit Answers for Marking Reset Test
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