PS CH 14 Voc S1 & S2 (12) - εξέταση
  • 1. the product of distance and the force in the direction an object moves
A) Energy
B) Work
C) Force
D) Power
  • 2. the SI unit of work, equal to 1 newton-meter
A) Watt (W)
B) Meter (m)
C) Newton (N)
D) Joule (J)
  • 3. the SI units of power, equal to 1 Joule per second
A) Newton (N)
B) Kilogram (kg)
C) Joule (J)
D) Wattt (W)
  • 4. the rate of doing work
A) Work
B) Power
C) Momentum
D) Force
  • 5. a common unit of power, equal to about 746 watts
A) Hippopotamuspower
B) Possumpower
C) Cockroachpower
D) Horsepower
  • 6. a device that changes a force
A) Power
B) Mechanical Advantage
C) Input Force
D) Machine
  • 7. the force exerted on a machine
A) Work input
B) Input force
C) Input arm
D) Friction force
  • 8. the distance through which the input force acts in a machine
A) Input distance
B) Wheel and axle
C) Fulcrum
D) Output distance
  • 9. the work done on a machine as the input force acts through the input distance
A) Work output
B) Work input
C) Work efficiency
D) Work resistance
  • 10. the force exerted by a machine
A) Ouput work
B) Output energy
C) Output distance
D) Output force
  • 11. the distance an output force acts through in a machine
A) Ouput Watt
B) Output distance
C) Input distance
D) Wedge
  • 12. the work done by a machine as the output force acts through the output distance
A) Work input
B) Power output
C) Power input
D) Work output
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