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application of forces and transfer of energy - Coggle Diagram
application of forces and transfer of energy
FORCE
force is a push and pull
force are measure with two types of spring balance
extensions
compressions spring balances
Contact force
a force that acts when 2 objects touch together
example: frictional force
can only occur if both objects are in contact with each other
it can occur in solid, liquid and gas
always opposes the movement of an object
causes thermal energy
S.I unit: Newton ( N )
non-contact force
gravitational force
gravity
gravity is exerted on an object
gravity exists between two objects that have mass
gravitational field strength on earth is 10N
differences between mass and gravity
mass
amount of matter in an object
gravity
weight is the measure of gravity exerted
magnet
able to attract objects like nickel, cobalt steel and iron
magnetic force
applications of magnetic force
maglev tains
like poles repel, unlike poles attract
state of motion
changes of the object will start a stationary object, stop a moving object and change the speed
changes due to the turning effect changes in size, pressure and shape
transfer of energy occurs