1) What is the SI unit for electric current? a) Ampere b) Volt c) Ohm d) Watt 2) Which meter measures electrical resistance? a) Voltmeter b) Ammeter c) Ohmmeter d) Wattmeter 3) What is the SI unit for electrical power? a) Joule b) Watt c) Coulomb d) Newton 4) Which device measures voltage? a) Voltmeter b) Ohmmeter c) Ammeter d) Thermometer 5) What is the SI unit for electric charge? a) Coulomb b) Farad c) Henry d) Tesla 6) What is the function of a pulley? a) Change direction b) Measure voltage c) Store energy d) Conduct electricity 7) Which meter measures electric current? a) Voltmeter b) Ammeter c) Ohmmeter d) Barometer 8) What is the SI unit for frequency? a) Hertz b) Pascal c) Tesla d) Henry 9) What is the role of gears in a machine? a) Transmit motion b) Measure current c) Store data d) Generate heat 10) What is the smallest unit of an element? a) Atom b) Molecule c) Proton d) Electron 11) Which device is used to measure electrical power? a) Wattmeter b) Voltmeter c) Ohmmeter d) Ammeter 12) What is the SI unit for inductance? a) Henry b) Farad c) Coulomb d) Joule 13) What is the function of an atom's nucleus? a) Contains protons b) Conducts electricity c) Stores energy d) Measures voltage 14) What is the SI unit for capacitance? a) Farad b) Henry c) Tesla d) Coulomb 15) What does a gear system do? a) Change speed b) Measure resistance c) Store charge d) Generate current 16) Which particle orbits the nucleus of an atom? a) Electron b) Proton c) Neutron d) Photon 17) What is the SI unit for magnetic flux? a) Weber b) Tesla c) Henry d) Farad 18) What is the purpose of a voltmeter? a) Measure voltage b) Measure current c) Measure resistance d) Measure power 19) What is the SI unit for energy? a) Joule b) Watt c) Volt d) Ampere 20) What is the role of neutrons in an atom? a) Stabilize nucleus b) Conduct electricity c) Store charge d) Emit light 21) What is Ohm's Law? a) V = IR b) P = IV c) E = mc^2 d) F = ma 22) Resistors in series have: a) Same current b) Same voltage c) Different current d) Different voltage 23) Fleming's Left Hand Rule is for: a) Motors b) Generators c) Transformers d) Capacitors 24) Fleming's Right Hand Rule is for: a) Generators b) Motors c) Inductors d) Resistors 25) What is the frequency of a sine wave? a) Cycles per second b) Amplitude c) Wavelength d) Phase shift 26) Semiconductors are used in: a) Diodes b) Resistors c) Inductors d) Transformers 27) What is the unit of resistance? a) Ohm b) Volt c) Ampere d) Watt 28) Wireless detectors use: a) Radio waves b) Sound waves c) Light waves d) Heat waves 29) Resistors in parallel have: a) Same voltage b) Same current c) Different voltage d) Different current 30) Electromagnetism involves: a) Magnetic fields b) Sound waves c) Light waves d) Heat energy

Electrical Science Exam Practice Test

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