Term | Definition |
Newton | the SI unit for force |
Law of inertia | Newton's first law of motion is often stated as. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. |
Law of force and acceleration | second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object |
Law of action-reaction | the force exerted by object 1 upon object 2 is equal in magnitude and opposite in direction to the force exerted by object 2 upon object 1. |
Tectonic | of or relating to changes in the structure of the Earth's surface |
Inertia | the tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction |
Force | a push or pull exerted on an object in order to change the motion of the object |
Acceleration | the rate at which velocity changes over time |
Speed | a measure of how fast something moves |
Mass | is a property of a physical body which determines the strength of its mutual gravitational attraction to other bodies, its resistance to being accelerated by a force |
Net force | the combination of all forces acting on an object |
Velocity | the speed of an object in a particular direction |
Applied force | an interaction of one object on another that causes the second object to accelerate or change velocity or direction. |
Tension | a force related to the stretching of an object (the opposite of compression |
Unbalanced force | a set of forces exerted on an object that change the motion of that object; the combined force has size and direction |
Rest | an object being stationary relative to a particular frame of reference or another object |
Gravity | a force of attraction between objects that is due to their massess |