Energy is the ablity to dow work.
Power is the time rate at which work is done.
independent variable often along x axis, dependent along y axis.
You can set the independent value, from which the dependent follows.
True Requires the development of theories that can be tested by systematic research.
The compass magnet aligns itself with the earths magnetic field.
The instrument is a Geiger counter and is used to measure radioactive level around people's bodies.
