Answer:
1. magnetometer, 2. reactor, 3. megawatt, 4. infrared, 5. turbine.
Explanation:
A magnetometer is an electronic instrument used to measure magnetic fields.
(1. <em>an instrument to measure magnetism</em> - magnetometer)
A reactor is a device used for the production of controlled nuclear energy, there are two principles in which nuclear reactors can be based: (i) Fission, (ii) Fusion.
(2. <em>a system for the production of controlled nuclear energy</em> - reactor)
A million watts equals a megawatt, a power SI unit.
(3. <em>a million watts; thousand kilowatts</em> - megawatt)
Infrared radiation corresponds to electromagnetic waves whose wavelength is between 0.7 to 1000 micrometers.
(4. <em>invisible radiation with waves longer than red</em> - infrared)
A turbine is mechanical device which generates mechanical work at the expense of fluid energy.
(5. <em>An engine in which a wheel turns by the force of wind, water or steam</em> - turbine)
