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Force and Motion

Unit 2 8th Science 2024

TermDefinition
Net Force The sum of all the forces acting on an object
Newtons The unit used to measure force
Balanced Forces Forces of an object that do not change the motion of the object
Unbalanced Forces Forces on an object that cause change in the motion of the object
Newton's 1st Law An object at rest stays at rest, or an object in motion stays in motion until balanced forces act upon it
Newton's 2nd Law Acceleration of an object depends on the object's mass and magnitude of the force acting upon it (F=ma)
Newton's 3rd Law Newton's law state that for every action there is an equal and opposite reaction
Inertia The tendency of a physical object to remain still or continue moving, unless force is applied
Mass The amount of matter an object contains, measured in grams
Acceleration Change of an object's speed or direction; Measures how an object changes velocity-moving faster, slower, or continues to move at the same rate
Average Speed The measurement of the rate of change of position with respect to time (s=d/t)
distance time graph a graph that shows how fat an object travels in a given amount of time
force diagram a diagram with vector signs that is used to determine net force
friction forces that resist the motion of an object
gravity the force of attraction between two objects
law of conservation of mass matter cannot be created nor destroyed. the mass of the reactants must equal the mass of the products.
applied force forces acting on an object such as pushes and pulls
displacement how far and in what direction something has moved from where it started
distance-time graph shows how far an object travels in a given amount of time
kinetic energy when something is in motion
normal force or force normal the push a surface gives back when something rests on it
system a group of things that work together and depend on each other to do something
velocity speed of an object in a certain direction
Created by: Vblackburn
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