Across
- 3. a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force
- 5. Newton's second law
- 7. the vector sum of all the forces that act upon an object
- 8. When two forces acting on an object are not equal in size, we say that they are unbalanced forces.
Down
- 1. the resistance that one surface or object encounters when moving over another.
- 2. When two forces acting on an object are equal in size but act in opposite directions
- 4. a vehicle's capacity to gain speed within a short time
- 5. strength or energy as an attribute of physical action or movement
- 6. the fact or process of doing something, typically to achieve an aim.