Technical Physics 1
Technical Measurement
What do we measure?
Fundamental properties mass (weight) kilogram length meter time second temperature Kelvin *electric charge (coulombs) and light intensity (candela) will be
discussed later in this class
Technical Physics 1
Force
Force
What is force? Any push or pull that tends to cause a change in motion measured in Newtons (N) or pounds (lbs) 1 N = 0.225 lbs examples of force gravity (weight) magnetism electricity tension or compression
Technical Physics 1
Motion
How far ?
distance or displacement ?
Distance - the length of the path traveled. It is not defined by the direction, it is a scalar quantity. Displacement - the length and direction of a line from the starting point to
Technical Physics 1
Rotational Motion
How far ?
angular displacement ()
the amount of rotation
degrees radians revolutions
1 rev = 360 = 2 rad
How fast ?
angular velocity ()
the rate of change in angular displacement
radians/second
Technical Physics 1
Vectors
Vector Addition
Quantities - measurement which are magnitude only Vector Quantities - measurements which include the magnitude and direction Methods of vector addition
Scalar Graphical polygon method parallelogram method