Across
- 3. the rate at which someone or something is able to move or operate.
- 4. the degree of compactness of a substance.
- 6. downward movement under the force of gravity only.
- 9. a quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another.
- 10. 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.
- 11. a quantity that has both magnitude and direction
- 13. the speed of something in a given direction.
- 14. the resistance that one surface or object encounters when moving over another.
- 15. resistance is a force that is caused by air. The force acts in the opposite direction to an object moving through the air.
- 16. rength or energy as an attribute of physical action or movement.
- 18. is the vector sum of forces acting on a particle or body.
Down
- 1. large body of matter with no definite shape.
- 2. the SI unit of force
- 5. A force that completely balances the weight of an object at rest.
- 7. an object or system of objects in mechanical equilibrium, the sum of forces equals zero.
- 8. increase in the rate or speed of something.
- 12. the base unit of mass in the International System of Units
- 17. hold down by placing a heavy object on top of it.