Dynamics Flashcards
What is a scalar quantity
Quantities defined by their size
What is a vector quantity
Quantities defined by their size and direction
What are the five scalar quantities.
Speed, distance, mass, time, energy
What are the five vector quantities
Velocity, displacement, weight, force, acceleration
What is the definition of distance.
Defined as the total length of a journey
What is the definition of displacement.
Defined of the shortest path between two points in a given direction from a starting point
What is met by the term acceleration
The change in velocity per second
What is the mass definition
Is a measure of how much matter there is
What is weight definition
The force of gravity
What is newtons first law
An object will remain stationary or travel at a constant speed unless acted upon by an unbalanced force
What is newtons second law
F=ma
What’s newtons third law
If A exerts a force on B, B exerts an equal but opposite force on A
What is energy conservation
Energy cannot be created or destroyed it is transferred or converted from one form into another
What is work done
Work done is the energy transferred when and unbalanced force is applied over A distance
