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Motion

Science

Motion Chapter Video

Motion Chapter Video

acceleration

a change in velocity with respect to time
acceleration Simple Definition

average speed

the distance an object travels divided by total time taken
average speed Simple Definition

constant speed

the rate of change of position in which, the same distance is traveled each second
constant speed Simple Definition

displacement

the difference between the initial and the final position of an object
displacement Simple Definition

instantaneous speed

an object's speed at an instant of time
instantaneous speed Simple Definition

Newtons first law of motion

if the net force acting on an object is zero, the motion of the object does not change
Newtons first law of motion Simple Definition

Newtons second law of motion

the acceleration of an object is the net force exerted on it divided by its mass
Newtons second law of motion Simple Definition

Newtons third law of motion

for every action, there is an equal and opposite reaction
Newtons third law of motion Simple Definition

reference point

a place or object used to describe the position or motion of another object
reference point Simple Definition

slope

the steepness of a line on a graph, equals vertical change over horizontal change
slope Simple Definition

speed

the distance an object travels per unit of time
speed Simple Definition

vector

a quantity with both a size and direction (Physics)
vector Simple Definition

velocity

speed and direction of a moving object
velocity Simple Definition

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