Physics

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Across
  1. 4. is a single force that acts on an object as a result of the interaction between the object and its environment
  2. 5. a visual representation of the forces, moments, and reactions acting on an object in a given situation
  3. 6. the forces that act between two or more nucleons
  4. 11. the force that pushes two objects apart
  5. 12. a force that pulls two objects towards each other
  6. 13. they result from physical contact between two objects
  7. 16. steady speed achieved by an object freely falling through a gas or liquid
  8. 20. an action exerted on an object which may change the object’s state of rest or motion
  9. 21. the tendency of an object not to accelerate, Newton’s first law
  10. 23. SI unit of force, named after Sir Isaac Newton
  11. 24. the force that opposes the movement of two surfaces that are in contact and are sliding over each other
  12. 26. a metric system of measurement based on the centimeter, gram, and second as the units for length, mass, and time, respectively
  13. 27. Diagrams that show force vectors as arrows
  14. 29. a field of force that consists of both electric and magnetic components, resulting from the motion of an electric charge and containing a definite amount of electromagnetic energy.
  15. 30. a system of weights based on a pound of 16 ounces or 7,000 grains, widely used in English-speaking countries
Down
  1. 1. a single force whose external effects on a rigid body are the same as the effects of several actual forces acting on the body
  2. 2. does not involve physical con- tact between two objects.
  3. 3. a force that acts on a surface in a direction perpendicular to the surface
  4. 7. the ratio of the magnitude of the force of friction between two objects in contact to the magnitude of the normal force with which the objects press against each other
  5. 8. refers to the realm of phenomena that are visible to the naked eye
  6. 9. the individual forces that make up a larger force vector when it is broken down into its constituent parts along specific axes, usually horizontal (x) and vertical (y)
  7. 10. the region of space surrounding a body in which another body experiences a force of gravitational attraction.
  8. 14. the total force acting on an object, or the combination of forces and torques acting on a rigid body
  9. 15. the force that resists the initia- tion of sliding motion between two surfaces that are in contact and at rest
  10. 17. the state in which the net force on an object is zero
  11. 18. for every action there is an equal and opposite reaction
  12. 19. his work contributed much to the modern understanding of force and motion
  13. 22. a measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe
  14. 25. an electric property associated with each point in space when charge is present in any form
  15. 28. F = ma, or net force is equal to mass times acceleration