What Is Physics? Flashcards
Physics
The science concerned with the fundamental laws of the universe.
What are some of the components physics deals with?
- Matter
- Energy
- Space And All their interactions
- Time
- Everything
What is motion?
Motions deals with a continuous change in the position of a body relative to a reference point, as measured by a particular observer in a particular point of reference.
Uniform Motion
Motion at a constant velocity, with no change in speed or direction
Non-Uniform Motion
Motion with changing speed, or direction, or both; motion in which velocity is changing
What is non-uniform motion also known as?
Accelerated motion
What are the types of quantities used in physics?
- Scalar
- Vector
- Reference Point
Scalar
A physical quantity that has magnitude (size) and unit but not direction. (Ex. distance, time, speed)
Vector
A physical quantity that has magnitude (size), unit was well as direction. (Ex. position, displacement, velocity, acceleration)
Reference Point
The point from which position is measured; usually the origin or starting point
Distance
The total length of a journey along very twist turn of the path
Is distance scalar or vector?
Scalar
Position
An object’s location as seen by an observer from a specific viewpoint or reference point
Is position scalar or vector?
Vector
Displacement
The change in position of an object
