Forces and Newtons Laws Crossword Puzzle
QUESTIONS LIST: force: a push or pull, net force: the sum of all the forces acting on an object , friction: the force that opposes the sliding motion of two surfaces that are touching each other, gravity: an attractive force between any two objects that depends on the masses of the objects and the distance between them, field: a region of space that has a physical quantity (such as a force) at every point , weight: the gravitational force exerted on an object's , first: _ law of motion - an object moves at a constant velocity unless an unbalanced force acts on it, inertia: the tendency of an object to resist any change in its motion, second: _ law of motion - an object's acceleration is in the same direction as the net force on the object and is equal to the net force exerted on it divided by its mass, third: _ law of motion - when one object exerts a force on a second object, the second object exerts a force on the first that is equal in strength and opposite in direction, air resistance: a friction-like force that opposes the motion of objects that move through the air , terminal velocity: the maximum speed an object will reach when falling through a substance, such as air, free fall: if gravity is the only force acting on an object, the object is in , centripetal: _ force exerted toward the center of a curved path, momentum: conserving _ : no external forces act on a group of objects, their total momentum does not change