Across
- 2. a body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing.
- 3. the overall force acting on an object, calculated by combining all individual forces (vectors) acting on it
- 4. a force that changes an object's motion, either by causing it to move, change speed, or change direction
- 5. when all the forces acting on an object are equal in magnitude and opposite in direction, resulting in a net force of zero.
- 7. the resistance that one surface or object encounters when moving over another.
- 8. the SI unit of force. It is equal to the force that would give a mass of one kilogram an acceleration of one meter per second per second, and is equivalent to 100,000 dynes.
- 9. a coherent, typically large body of matter with no definite shape.
Down
- 1. the force that prevents two surfaces from moving relative to each other when they are at rest
- 6. a tendency to do nothing or to remain unchanged.
- 7. strength or energy as an attribute of physical action or movement