Across
- 2. Friction, or drag, that acts on something moving through the air.
- 4. Force per surface area where the force is normal to the surface; measured in pascals.
- 5. For an object resting on a horizontal surface, the upward force that balances the weight of the object.
- 8. Any influence that tends to accelerate an object: a push or a pull; measured in newtons. A vector quantity.
- 9. The force of a body due to the gravitational attraction of another body (commonly earth).
- 11. Anything that flows, or, in particular, an liquid or gas.
- 14. A mutual action between objects where each object exerts an equal and opposite force on the other.
- 16. The fundamental SI unit of mass. One kilogram (with a symbol kg) is the amount of mass in one liter of water at 4 degrees celsius.
- 18. Force The combination of all the forces that act on an object.
Down
- 1. A measure of an object’s inertia; also a measure of the amount of matter in an object. Depends only on the amount of and kind of particles that compose and object.-not on its location (as weight does).
- 3. Force that completely balances the weight of an object at rest.
- 6. In general, a state of balance. For example, the of a body on which no net force acts.
- 7. One of the pair of forces described in Newton's Third Law.
- 10. Velocity Terminal speed together with direction of motion (down for falling objects).
- 12. SI unit of force. One newton (N) is the force applied to a one-kilogram mass that will produce an acceleration of one meter per second.
- 13. The SI unit of pressure. One pascal (with a symbol Pa) of pressure exerts a normal force of one newton per square meter.
- 15. force that is equal in strength and opposite in direction to the action force, which acts simultaneously on whatever is exerting the action force.
- 17. The reluctance of any body to change its state of motion. Mass is the measure of inertia.