Physics Crossword

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Across
  1. 2. when two surfaces make contact and form resistance.
  2. 3. Unit of force.
  3. 6. a force that causes change in motion.
Down
  1. 1. Defined in the Newton's 3rd Law
  2. 2. A physics equation known commonly under Newton's Second Law of Motion. It states that force is equal to mass multiplied by acceleration.
  3. 4. Sum of all forces acting upon an object.
  4. 5. The principle of inertia states that a body at rest will remain at rest and a body in motion will continue moving with a constant speed unless acted upon by an external force non zero force.
  5. 7. A change in velocity over a period of time.