Laws of motion vocabulary

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Across
  1. 3. Any object, generally in studies of motion.
  2. 7. The law that states that all objects continue with constant motion unless acted on by an unbalanced force.
  3. 8. The vector sum of all the forces that act upon an object.
  4. 9. A mathematical quantity that describes a magnitude and direction.
  5. 11. A diagram of an object and its surroundings with arrows indicating all the forces acting on it.
  6. 15. The law that states ‘for every action force there is an equal and opposite reaction force.
  7. 16. The rate of change of a body’s velocity.
  8. 18. The degree of reproducibility or agreement between repeated measurements.
  9. 19. A simple device involving a solid arm and a fulcrum, which can move to multiply a force applied to one part.
Down
  1. 1. The speed of a body, including its direction, velocity is a vector quantity.
  2. 2. A contact force that is perpendicular to the surface that an object makes contact with.
  3. 4. The law described by the equation; F = ma.
  4. 5. The property of a body affected by a gravitational field.
  5. 6. multiplier Devices that increase the speed of, or distance travelled by, an object.
  6. 10. The rate at which a body moves; a scalar quantity.
  7. 12. Complete path travelled by an object; a scalar quantity.
  8. 13. How close the measured value is to the true value.
  9. 14. The shortest distance from the initial position to the final position with a direction given; a vector quantity.
  10. 17. experiment The goal of a thought experiment is to explore potential consequences of the principle in question without performing the experiment.