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Work & Machine (Grim_Physics)

Crossword Puzzle

Work, Power, and Machines Review

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Recommended age: 14 years old
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Crossword Puzzle

Work & Machine (Grim_Physics)Online version

Work, Power, and Machines Review

by Matthew Grim
1

Ratio of output work to input work

2

"How useful" a machine is; Ratio of output force to input force

3

According to Work Energy Theorem, work is equal to the change in _________________

4

Unpowered mechanical device that works by a single movement

5

Ramp at an angle to the horizontal; Aids in raising and lowering objects

6

Sign of work when it occurs in the SAME direction as an object's motion

7

Sign of work when it occurs in the OPPOSITE direction as an object's motion

8

When a machine has 100% efficiency (ignores friction, heat, air resistance, etc.)

9

Force overcome when lifting an object vertically

10

Mechanical system capable of performing work

11

Wheel with a rope passing through; Changes the direction of force

12

Whatever force or energy the machine produces or does for you

13

_________ and axle

14

Bar rotating on a fulcrum; Ex: see-saw

15

Converts rotational motion into linear motion; Fastens two things together

16

Unit for work (J)

17

Rate at which work is done or "speed of work"; Equal to work over time

18

Force that is applied by you; Everything you must do to make a machine work

19

Triangular tool used to separate objects; Ex: axe

20

Transfer of energy; Equal to force multiplied by distance

21

Unit for power (W)

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