X-rays-are produced when extremely high-energy electricity produces highspeed electrons that interact with matter
equal in strength the positive charge of the proton and the negative charge
of the electron are
electrostatics-study of the distribution of f
Physics is the branch of science that involves the study of the physical
Physics is the study of matter and energy and their relationships.
Scientific Method - the process of experimentation and explanation
No concept or model of nature is valid un
light wavelength range
400 nm(4.0 e-7 m) to 700 nm(7.0 e -7m)
smallest wavelength: blue, largest wavlength: red
wavelength increases = indigo, blue, green, yellow, orange, and red
light tralves in straight line
luminous body emits light wav
If there is a break at any point in a series circuit, the current will stop
everywhere in the circuit.
When more devices are added to a series circuit, the total circuit resistance
When a new branch containing a resistor is added to a parallel
The motion of charges in wires, motors, light bulbs and other devices is
best called electric current.
In many circuit diagrams, any device that uses electrical energy is
represented by a resistor.
A circuit with a switch turned to the off position or a c
Equilibrant-A force that produces equilibrium
equilibrant has equal magnitude and resultant but in an opposite direction
equilibrium net force is zero, motionless r constant velocity
direction of velocity and acceleration are parallel to a hill
Electric charge comes in discrete units that are positive or negative.
Electrostatics-the study of stationary electric charges.
An object is said to be electrified if it has too few or too many electrons.
Electrification-can be created by contact, frictio
High Voltage Generators=Principal function of x-ray generator is to provide
current at high voltage to the x-ray tube.
Electrical power available to hospital/clinic provides up to 480V
Transformers convert low voltage to high voltage through the process o
Mechanics study of motion
2 flavors of mechanics -kinematics,dynamics
Kinematics description of motion
Dynamics-causes of motion
Different dimensions-one dimension (straight line)
-two dimension (plane)
-three dimension (space)
Physicist James Maxwell developed electromagnetic theory.
When?, What did it do?, What impact did it have?
Demonstrated electrical & magnetic properties of light.
Foundation for many more discoveries: uniform theory of e-m spectrum.