1. Which is an SI unit for work done on an object? 10. Which is an acceptable unit for impulse? A) B) A) N•m B) J/s C) J•s D) kg•m/s C) D) 11. Using dimensional analysis, show that the expression has the same units as acceleration. [Show all the 2. Which combination of fundamental units can be used to express energy? steps used to arrive at your answer.] A) kg•m/s B) kg•m2/s 12. Which quantity and unit are correctly paired? 2 2 2 C) kg•m/s D) kg•m /s A) 3. A joule is equivalent to a B) A) N•m B) N•s C) N/m D) N/s C) 4. A force of 1 newton is equivalent to 1 A) B) D) C) D) 13. Which two quantities are measured in the same units? 5. Which two quantities can be expressed using the same A) mechanical energy and heat units? B) energy and power A) energy and force C) momentum and work B) impulse and force D) work and power C) momentum and energy 14. Which is a derived unit? D) impulse and momentum A) meter B) second 6. Which pair of quantities can be expressed using the same C) kilogram D) Newton units? 15. Which combination of fundamental unit can be used to A) work and kinetic energy express the weight of an object? B) power and momentum A) kilogram/second C) impulse and potential energy B) kilogram•meter D) acceleration and weight C) kilogram•meter/second 7. Which physical quantity is correctly paired with its unit? D) kilogram•meter/second2 A) power and watt•seconds 16. The fundamental unit of mass in the mks system is the B) energy and newton•seconds A) milligram B) gram C) electric current and amperes/coulomb C) kilogram D) decigram D) electric potential difference and joules/coulomb 17. A unit of mass is the 8. Which unit is equivalent to a newton per kilogram? A) joule B) kilogram A) B) C) J•s D) C) Newton D) watt 9. The work done in moving a block across a rough surface 18. Which of the following is a unit of force? and the heat energy gained by the block can both be A) kilogram B) Newton measured in C) kg-m/sec D) m/sec2 A) watts B) degrees 19. Electrical energy may be measured in C) newtons D) joules A) joules B) watts C) volt-amps D) volts 20. Which variable expression is paired with a 27. The fundamental units for a force of one Newton are corresponding unit? A) meters/second2 A) B) kilograms C) meters/second2/kilogram B) D) kilogram-meters/second2 28. Which term represents a fundamental unit? C) A) watt B) Newton D) C) joule D) meter 29. Which is the unit of magnetic flux in the MKS system? 21. The unit "volts per meter" measures the same quantity A) Weber as B) joule A) joules per volt C) coulomb B) Newtons per ampere-meter D) Newton per ampere-meter C) Newton-meters2 per coulomb2 30. A unit of electric potential difference is the D) Newtons per coulomb A) ampere B) joule 22. Which is a unit of electrical power? C) volt D) coulomb A) volt/ampere B) ampere/ohm 31. Which combination of fundamental units can be used to C) ampere2/ohm D) volt2/ohm express the amount of work done on an 23. Which quantity and unit are correctly paired? object? A) velocity & m/s2 A) B) B) momentum & kg-m/s2 C) D) C) energy & kg-m2/s2 32. Which pair of units measures the same quantity? D) work & kg/m A) kilogram and kilocalorie 24. One joule is equivalent to one B) kilocalorie and degree A) Newton/meter3 C) joule and kilocalorie B) kilogram-meter3 D) degree and joule C) watt2-Newton D) kilogram-meter2/second2 25. Which two quantities are measured in the same units? A) velocity and acceleration B) weight and force C) mass and weight D) force and momentum 26. A unit for kinetic energy is the A) watt B) joule C) Newton D) kilogram-meter/second Answer Key Basic Fundamental Units 1. A 2. D 3. A 4. A 5. D 6. A 7. D 8. A 9. D 10. D 11. 12. C 13. A 14. D 15. D 16. C 17. B 18. B 19. A 20. C 21. D 22. D 23. C 24. D 25. B 26. B 27. D 28. D 29. A 30. C 31. C 32. C.