laws of motion vocabulary

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Across
  1. 2. A contact force that is perpendicular to the surface that an object makes contact with.
  2. 5. Devices that increase the speed of, or distance travelled by, an object.
  3. 10. Complete path travelled by an object; a scalar quantity.
  4. 11. The speed of a body, including its direction, velocity is a vector quantity.
  5. 12. The speed of a body, including its direction, velocity is a vector quantity.
Down
  1. 1. How close the measured value is to the true value.
  2. 3. The property of a body affected by a gravitational field; also the inertia of a body.
  3. 4. A simple device involving a solid arm and a fulcrum, which can move to multiply a force applied to one part.
  4. 6. The shortest distance from the initial position to the final position with a direction given; a vector quantity.
  5. 7. The goal of a thought experiment is to explore potential consequences of the principle in question without performing the experiment.
  6. 8. The rate of change of a body’s velocity, including its direction; acceleration is a vector quantity – a body can accelerate by moving faster or slower, or by changing direction.
  7. 9. Any object, generally in studies of motion.