DMIR 1121 Radiographic Equipment | Physics Exam 1 Study Guide, Questions & Answers
Who and when were x-rays discovered? Wilhelm Roentgen, November 8, 1895
Physics deals with matter , energy & relationship to eachother
Radiologic branch of physics Deals with the origin, nature, & behavior of X-rays
Health (radiation protection) branch of physics Deals with the protection of people from over exposure of radiation
Technology Practical application of the laws of physics
classical mechanics deals with the motion of bodies based on Newton's laws.
The study of motion Mechanics or kinematic
What are the 3 types of mechanical laws that explain how - Classical or Newtonian
objects move & transfer force during motion? - relativistic
- quantum
Newtons 1st law (Law of Inertia) an object in motion tends to stay in motion & an object at rest stays
at rest unless acted upon by an outside force.
All matter has _____ inertia
(Newtons 1st law) If no outside force acts on an object how There will be no change it is motion
will this affect the object?
(Newtons 1st law) Anytime an object changes direction it Must lose energy to do so
must lose what?
How is inertia measured? Momentum(p)
Momentum The product of an object's mass and velocity
Stuvia 2026-2027
, DMIR 1121 Radiographic Equipment | Physics Exam 1 Study Guide, Questions & Answers
The greater the value for momentum means? The more energy that is required to change the Motion of an object
Newtons 2nd law law of acceleration
acceleration of an object depends on the _______ and the Mass & force
amount of _____ applied
(Newtons 2nd law)Acceleration of an object is directly net force acting upon it
proportional to what?
(Newtons 2nd law)Acceleration of an object is inversely to the mass of the object
porportional to what?
(Newtons 2nd law) The more Mass an object posses the Force
more ______ is needed to accelerate the object
Newtons 3rd law Law of interaction
(Newtons 3rd law)when one object exerts a force on a The second object will exert an equal & opposite force upon the first
second object what will happen?
Understanding Newtons 3rd law is important to what? Collisions
(Newtons 3rd law)What are the two types of collisions? Elastic & inelastic collisions
Elastic collisions collisions that conserve both momentum and KE, such as billiard balls and atoms
and sub-atomic particles (the only true elastic collisions)
- The objects involved remain separate (bounce off each other without losing any
energy)
Inelastic collisions Momentum is conserved but a change in velocity must take place
Ex: when two objects collide and move together, like car crashes
Relativistic mechanics Associated with Einstein and describes the motion of objects moving at or near the
speed of light (laws of classical mechanics no longer apply)
Stuvia 2026-2027
Who and when were x-rays discovered? Wilhelm Roentgen, November 8, 1895
Physics deals with matter , energy & relationship to eachother
Radiologic branch of physics Deals with the origin, nature, & behavior of X-rays
Health (radiation protection) branch of physics Deals with the protection of people from over exposure of radiation
Technology Practical application of the laws of physics
classical mechanics deals with the motion of bodies based on Newton's laws.
The study of motion Mechanics or kinematic
What are the 3 types of mechanical laws that explain how - Classical or Newtonian
objects move & transfer force during motion? - relativistic
- quantum
Newtons 1st law (Law of Inertia) an object in motion tends to stay in motion & an object at rest stays
at rest unless acted upon by an outside force.
All matter has _____ inertia
(Newtons 1st law) If no outside force acts on an object how There will be no change it is motion
will this affect the object?
(Newtons 1st law) Anytime an object changes direction it Must lose energy to do so
must lose what?
How is inertia measured? Momentum(p)
Momentum The product of an object's mass and velocity
Stuvia 2026-2027
, DMIR 1121 Radiographic Equipment | Physics Exam 1 Study Guide, Questions & Answers
The greater the value for momentum means? The more energy that is required to change the Motion of an object
Newtons 2nd law law of acceleration
acceleration of an object depends on the _______ and the Mass & force
amount of _____ applied
(Newtons 2nd law)Acceleration of an object is directly net force acting upon it
proportional to what?
(Newtons 2nd law)Acceleration of an object is inversely to the mass of the object
porportional to what?
(Newtons 2nd law) The more Mass an object posses the Force
more ______ is needed to accelerate the object
Newtons 3rd law Law of interaction
(Newtons 3rd law)when one object exerts a force on a The second object will exert an equal & opposite force upon the first
second object what will happen?
Understanding Newtons 3rd law is important to what? Collisions
(Newtons 3rd law)What are the two types of collisions? Elastic & inelastic collisions
Elastic collisions collisions that conserve both momentum and KE, such as billiard balls and atoms
and sub-atomic particles (the only true elastic collisions)
- The objects involved remain separate (bounce off each other without losing any
energy)
Inelastic collisions Momentum is conserved but a change in velocity must take place
Ex: when two objects collide and move together, like car crashes
Relativistic mechanics Associated with Einstein and describes the motion of objects moving at or near the
speed of light (laws of classical mechanics no longer apply)
Stuvia 2026-2027
