Force Flashcards
What is force?
A push or pull that alters, or tends to alter the state of motion of a body
What is internal force?
Generated by the sports performer with the contraction of skeletal muscle
What is the external force?
Comes from outside he body and acts upon it;
What is the weight force?
The gravitational force/ pull that the earth exerts on a body
What is the reaction force?
The equal and opposite force exerted by a body in response to the action forcee placed upon it
What is friction?
The force that opposes the motion (acts in the opposite direction) of two surfaces in contact
What is air resistance?
The force opposing the motion of a body travelling through air
What is the direction fo motion (DOM)?
The net force is a sum of all forces acting on a body (resultant force) when all the individual forces have been considered
How do you label weight on paper?
Acts vertically downwards from the centre of mass, draw a line down. Acts on any body on the earths surface (whether in contact or not)
How do you present reaction force on paper?
Always present when two bodies are in contact with the ground, a resultant of newtons 3rd law (Law of reaction)
