1/14
Basic Principles of physics explained
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
When defining levers, A means
Axis
When defining levers, F means
Force
Force
the amount and direction of push or pull applied
Push
creates compression
pull
creates traction
Internal forces
muscle contraction, ligamentous restraint
external forces
gravity, any externally applied resistance
Gravitational force
is the force exerted on an object or person by gravity.
Gravity
mutual attraction between the earth and an object
Weight
is the result of a gravitational force and the mass of an object and always pushed directly downward.
Ground reaction force
the upward force a supporting surface exerts when an object pushes downward on the supporting surface.
Friction:
force between two surfaces that increased resistance to motion of one surface across another
Friction is __________ by compression
increased
Friction is __________ by traction
decreased
Different kinds of forces