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Chapter 14: Interactions Through Application of Forces - Coggle Diagram
Chapter 14:
Interactions Through Application of Forces
what is pressure?
pressure is he amount of force acting on the unit area
what are some forces around us?
magnetic force
non-contact force
north pole and south pole
like pole repel, unlike poles attract
normal force
a force that go against gravity
frictional force
friction always opposes the movement of an object
gravitational force (gravity)
a force that pulls the objects towards the earth
air resistance (drag force)
spring force (elastic force)
electric force
tension force
what is a force?
a force is a push or a pull
what are the effects of forces?
start a stationary object
change the speed of a moving object
stop a moving object
change the direction of a moving object
change the shape and size of an object
what is the SI unit of force?
newton (N)
what is the SI unit of speed?
metre per second (m/s)
the speed equations
time = distance / speed
distance = speed x time
speed = distance / time
what is the SI unit for mass?
kilogram (k)
what is the difference between mass and weight?
weight changes as we moves from place to place
mass would not change
how do we increase or reduce pressure in daily life?
increase pressure by reducing the area
reduce pressure by increasing the area
how to calculate pressure?
pressure = force / area
what is the SI unit for pressure?
N / m^2 or Pa