types of motion Flashcards
define motion
movement that occurs when an object has changed position in space and in time, due to the application of forces
what is internal force?
Structures of the body that interact to produce movement
what is external force?
interaction between the body and the environment.
- These can include contact forces and non contact forces
- Gravity
- Friction
- Air resistance
- Water resistance
what is linear motion?
movement is along a straight line, there is no rotation and all body parts move in the same direction at the same speed
E.G. = An ice skater gliding after they completed a movement
what are the two types of linear motion?
Rectilinear motion
= occurs through a straight line
Curvilinear motion
= object moves through a curved trajectory
what is angular motion?
Where all the parts of a body move through a rotational pathway, through the same angle, in the same direction, and at the same time.
what is general motion?
Combination of linear and angular motion
