Ch 10 pt 2 Flashcards Preview

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Flashcards in Ch 10 pt 2 Deck (20)
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0
Q

Unpowered machine uses one motion to change size + direction of force

A

Simple machine

1
Q

moving parts accomplish specific task

A

Mechanical system

2
Q

Ratio of output force to input force

A

Mechanical advantage

3
Q

Mechanical system capable of performing work

A

Machine

4
Q

Type of simple machine consisting of uniformly sloping surface

A

Ramp

5
Q

Wheel with teeth. Two or more ____ can be connected to transfer motion from one place to another. Use to change speed for direction

A

Gear

6
Q

Simple machine consisting of a threaded body and grooves head that turns rational motion into a linear motion

A

Screw

7
Q

Simple machine. Pulley is a wheel with a rim that rotates on the shaft in carries the rope transmits motion and force

A

Ropeand pony

8
Q

System isolated so we cannot exchange energy or matter was surroundings

A

Closed system

9
Q

Quantity of the force multiplied by a distance. Energy used to move something

A

work

10
Q

Simple machine consisting of a rigid bar able to turn around a fixed point called a fulcrum. Used to move a lift load

A

Lever

11
Q

Opposes the relative motion of the bodies

A

Friction

12
Q

J unit for energy and work

A

Joule

13
Q

Force applied to machine

A

Input force

14
Q

Force produced by a machine

A

Output force

15
Q

Point about which a lever rotates

A

Falcrum

16
Q

Work or energy put into a machine that resources used by a machine

A

Input

17
Q

Or energy produced by a machine product of a system and machine

A

Output

18
Q

Distance on the lever between in the Fulcrum anf the point where the input force is applied

A

Input arm

19
Q

Distance on a lever between the fulcrum and where the output force is exerted

A

Output arm