Physics Chapter 1 and 2

Physics

Branch of science that involves the study of the physical world: energy, matter and how they are related.

Hypothesis

An educated guess

Motion diagram

a series of images showing the positions of a moving object at equal time intervals

Scientific theory

A well-tested explanation for a set of observations or experimental results. Tells WHY something happens.

Partical Diagram

You replace the object of interest with single points to show motion

Velocity

Speed in a given direction

Model

A representation of an object or event

Vector

A quantity that has both size and direction.

Scalar

A physical quantity that has magnitude but no direction

Average speed

total distance divided by total time

Scientific Law

A statement that describes what will happen every time.

Displacement

the change in position of an object

Position

the location of an object

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