Across
- 1. he vector sum of forces acting on a particle or object
- 4. states that the force F acting on a body is equal to the mass m of the body multiplied by the acceleration a of its centre of mass, F = ma, is the basic equation of motion in classical mechanics.
- 5. if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
- 7. increase in the rate or speed of something
- 9. a tendency to do nothing or to remain unchanged.
- 10. the rate at which someone or something is able to move or operate
- 12. the speed of something in a given direction
Down
- 2. states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction
- 3. the force applied in one direction is greater than the force applied in the opposite direction
- 6. equal in size and opposite in direction
- 8. a coherent, typically large body of matter with no definite shape.
- 11. the force that attracts a body toward the center of the earth, or toward any other physical body having mass.