## Tuesday, 19 August 2014

### FORCE TERMINOLOGY

Select the correct term to complete the sentences.
velocity
Newton’s first law
newton
Newton’s second law
slope
force
inertia
free fall
weight
acceleration
net force
terminal speed
acceleration due to gravity

1. A ____ is required to change motion.
2. “Objects want to keep doing the same thing” is a way of stating ____.
3. An object with more mass also has more ____.
4. The total of all the forces acting on an object is called the ____.
5. The ____ is the metric unit of force.
6. The rate at which speed changes is called ____.
7. ____ relates force, mass, and acceleration in the equation F = ma.
8. A falling object under the influence of only gravity is in ____.
9. The ____ on Earth is equal to 9.8 m/sec2.
10. Speed with direction is called ____.
11. The force of gravity on an object is its ____.
12. When the force due to gravity equals the force due to air resistance,
the speed of a falling object is called its ____.
13. The ____ of a line is found by dividing the rise by the run.