Forces Flashcards
Names of forces?
friction, magnetism, gravity
Effects of forces?
Changing the direction of movement, shape of an object, stopping a moving object, start a object moving
Friction is reduced by?
lubricant, rollers, streamlining, ball bearings
Friction produce?
heat
Friction opposes?
motion
Friction is a what?
force
Define pressure?
Force acting on the unit area
Pressure depend on two factors?
The force exerted and area is spread over
Unit for pressure?
Newton
Formula for pressure?
Pressure=force/area
What is friction?
opposes the movement of an object
What is magnetism?
Magnet that exerts a force
What is gravity?
A force pulls objects towards the earth
What is weight?
Weight is measured of the force of gravity exerted on an object
What is mass?
mass is measure of the amount of matter in an object
