7) Introduction to Mechanics Flashcards
What are particles
Objects that occupy a single point in space (Aka point masses)
What is velocity
Time derivative of the position vector
What is speed
The absolute magnitude of velcoity
|v(t)|
What is the direction of the velocity vector
v(t) is tangent to the trajectory of the
particle at the location r (t)
What is momentum
What is acceleration
What Newton’s 2nd Law of Motion
F = ma
What is Weight
What is Drag
What would be the equation for result force on a particle
What is the position vector for circular motion
What is the vecloity for circular motion
What is the acceleration for circular motion
How is the path of a pendulum defined
What is the acceleration of a pendulum
What is the tension of a rod
What is the equation of motion for a pendulum
What is a unit vector of circular motion
What is a force field
- A force field is a force acting on a particle which depends only on the position of that particle
- e.g (Gravity is a force field, the tension in the pendulum rod would not be)
What is a central force field
A central force field is one which has magnitude depending only on the distance to the origin, and has direction parallel to the particle’s position vector.
What is the equation of a central force
What is newtonian gravity
What is electrostatic repulsion
Describe circular motion for central forces
What is the period of motion
What is a conservative force field
What is potential energy
