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how to calculate work done
force x distance
what is the unit for work done
J
name the 6 energy transfers
chemical
kinetic
thermal
nuclear
gravitational potential energy
elastic potential energy
how to calculate power
work done/time
what are the three non-contact forces
magnetic
electrostatic
gravity
write a method to measure power output
give students a 10N weight
they must lift weight from shoulder to floor 20 times and measure the time
measure the students shoulder height and multiply by 20
work done = force x distance
power = work done/time
what is a resolving force
it means splitting up a force into 2 component forces at right angles to eachother
how to make the turning force larger
increase the force used to push
what happens if the distance from the pivot is bigger
the larger the distance the bigger the turning force
how to calculate moment
force x perpendicular distance
how to calculate force
moment/distance
how to calculate distance
moment/force
