Q: wheel and axle
A: a kind of simple machine

Q: joule
A: mks energy unit

Q: dyne
A: the unit for force in the CGS system

Q: the unit for m in the kinetic energy formula
A: kilogram

Q: work
A: force in the direction of the motion times distance moved

Q: horsepower
A: the English power unit

Q: kinetic
A: energy of motion

Q: the feature of force vs distance graph which gives the work done
A: area

Q: spring constant
A: the constant value in elastic potential energy equation

Q: ama
A: actual mechanical advantage

Q: the graphic relationship between force and spring elongation
A: linear

Q: potential
A: stored energy

Q: power
A: work over time

Q: the feature of a force vs distance graph which gives the spring constant
A: slope

Q: Hooke's law
A: it describes the force needed to stretch a spring

Q: efficiency
A: work out divided by work in times 100 %

Q: your arm is this kind of lever
A: third class

Q: ima
A: ideal mechanical advantage

Q: watt
A: an MKS power unit

Q: it is squared in the kinetic energy formula
A: velocity