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Using Machines - Quiz
Contributed by: Wood
  • 1. A force that opposes sliding motion between two touching surfaces.
A) efficiency
B) machanical advantage
C) output force
D) input force
E) friction
  • 2. Output force divided by input force equals ________ .
A) human advantage
B) conservation
C) mechanical advantage
D) efficiency
E) distance output
  • 3. Lubrication can reduce the _______________ between two surfaces.
A) mechanical advantage
B) output force
C) efficiency
D) friction
E) magnetic force
  • 4. The ____________ work done by a machine can never be greater than the __________ done on the machine.
A) fishing, hunting
B) efficiency, advantage
C) advantage, efficiency
D) input work, output work
E) output work, input work
  • 5. When you remove a nail with a hammer the nail is remove by the _____________ .
A) input advantage
B) input force
C) output advantage
D) output force
E) friction
  • 6. Even though machines make work easier they _________________ the amout of work you need to do.
A) stop
B) change
C) don't increase
D) don't decrease
E) do decrease
  • 7. The force that you apply on a machine is the _______ .
A) mechanical advantage
B) output force
C) input force
D) applied advantage
E) MA
  • 8. The _____________ of a machine is the ratio of the output work to the input work.
A) efficiency
B) raw rate
C) imprint of work
D) opposing effort
E) total effort
  • 9. F out / F in equals _____ .
A) EF
B) PA
C) MA
D) AM
E) FA
  • 10. The force that the machine applies is ________ .
A) output force
B) input force
C) applied advantage
D) Input advantage
E) mechanical advantage
  • 11. W out / W in equals _____ .
A) human output
B) off
C) ffa
D) ma
E) eff
  • 12. The work that the machine does is the ________ .
A) output advantage
B) input work
C) output work
D) output force
E) human effort
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