Physics Unit 4 2nd

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Across
  1. 2. speed with a direction.Units meters per second. Equal to distance divided by time.
  2. 4. The amount of something. Units are kilograms (kg).
  3. 7. the forces are unequal in size in and in opposite directions.The result will be acceleration in one direction.
  4. 9. a mass moving with velocity. Units kilograms * meters/seconds. equal to a mass multiplied by velocity.
  5. 10. a force due to gravity from the planet we are on. “Force of gravity” on an objectunits are Newtons (N).
  6. 12. the forces are equal in size and opposite in direction.The result will be no movement.
  7. 13. is mass multiplied by a change in velocity
  8. 14. force that resists movement
  9. 17. force needed to begin movement. Units are Newtons.
  10. 19. quantity that has magnitude and direction.Examples are velocity, force, acceleration, momentum.
Down
  1. 1. the sum of all the forces acting on an object.Sometimes called the “resultant.”
  2. 3. is force for some amount of time. Units Newtons * seconds or impulse is equal to a change in momentum. Units are kilograms * meters/seconds or a mass experiencing a change in velocity.
  3. 5. change in velocity per an amount of time.Units meters/second/second.Examples: speeding up, slowing down, or changing direction. Acceleration is equal to a change in velocity divided by time.
  4. 6. the force of the ground pushing back against an object.
  5. 8. measure the angle of falling over. Units are in degrees.
  6. 11. force produced when bodies strike each other (3rd law.Force is equal to Impulse divided by time.
  7. 13. action and reaction between two objects. (3rd Law)
  8. 15. is change in momentum
  9. 16. an object will continue its current motion until some force causes it's speed or direction to change.
  10. 18. A push or pull on an object.Units are Newtons (N).