Science chp 1 Flashcards
Relative motion
An object may change position if it moves relative to a reference point.
Distance
The length of the route you will travel.
Displacement
Includes the distance between the starting and ending points and the direction you will travel.
Speed
Distance traveled divided by time taken to travel that distance.
Velocity
The speed of the object and the direction of its motion.
Instantaneous speed
The speed of an object at one exact moment.
Average speed
the total distance traveled divided by the total time taken.
Acceleration
the change in velocity divided by the time it takes for the change to occur.
Mass
The amount of matter in an object.
Momentum
A measure of how difficult it is to stop a moving object.
Inertia
The tendency of an object to resist change in its motion.
Law of Conservation of Momentum
total momentum of objects that collide with each other doesn’t change.
Acceleration formula
(Sf-Si)/time
Momentum
p=mv (momentum= mass x velocity)
