Newton’s second and third law
Across
- 3. The speed at which the acceleration of a falling object is zero because friction balances the weight.
- 5. A diagram showing all the forces acting on an object.
- 7. One if the pair of forces described in Newton’s third law.
- 8. The acceleration produced by a net forced on a body is directly proportional to the magnitude of the net force, is in the same direction as the net force, is inversely proportional to the mass of the body.
- 9. Force per unit of surface area where the forces is perpendicular to the surface; measure in pascals.
- 10. Anything that flows; in particular, any liquid or gas.
Down
- 1. A mutual action between objects where each object exerts an equal and opposite force on the other.
- 2. When two values changes in opposite directions, so that if one increases the other decreases.
- 3. Terminal speed together with the direction of motion (down for falling objects.)
- 4. Friction, or drag, that acts on something moving through air.
- 6. The force that is equal in strength and opposite in directions to the action force, which acts simultaneously on whatever is exerting the action force.
- 8. Whenever one body exerts a force on a second body, the second body exerts an equal and opposite force on the first.
- 9. The SI unit pressure. One pascal (symbol Pa) of pressure exerts a normals forces of one newtons per square meter.