Mechanisms - Unit 1.1

Question 1

ABET

Answer 1

The recognized accreditor for college and university programs in applied science, computing, engineering, and technology.

Question 2

Actual Mechanical Advantage

Answer 2

The ratio of the magnitude of the resistance and effort forces applied to a system.

Question 3

Belt

Answer 3

A continuous band of tough flexible material used to transmit motion and power within a pulley system.

Question 4

Career

Answer 4

A profession for which one trains and which is undertaken as a permanent calling.

Question 5

Chain

Answer 5

A series of usually metal links or rings connected to or fitted into one another and used to transmit motion and power within a sprocket system.

Question 6

Effort Force

Answer 6

An external force applied to an object.

Question 7

Efficiency

Answer 7

The ratio of useful energy output to the total energy input, or the percentage of the work input that is converted to work output.

Question 8

Friction

Answer 8

The resistance that one surface or object encounters when moving over another.

Question 9

Fulcrum

Answer 9

The fixed point around which a lever rotates.

Question 10

Gear

Answer 10

A circular toothed object used to transfer rotary motion and torque through interlocking teeth.

Question 11

Ideal Mechanical Advantage

Answer 11

Ratio of distance traveled by the applied effort and resistance force within a system.

Question 12

Idler Gear

Answer 12

A gear positioned between the driver and the driven gear used to change rotational direction.

Question 13

Inclined Plane

Answer 13

A flat surface set at an angle or an incline with no moving parts that is able to lift objects by pushing or pulling the load.

Question 14

Lever

Answer 14

A rigid bar used to exert a pressure or sustain a weight at one point of its length by the application of a force at a second and turning at a third on a fulcrum.

Question 15

Mechanism

Answer 15

The structure of or the relationship of the parts in a machine, or in a construction or process comparable to a machine.

Question 16

Moment

Answer 16

The turning effect of a force about a point equal to the magnitude of the force times the perpendicular distance from the point to the line of action from the force.

Question 17

Pitch

Answer 17

Distance between adjacent threads in a screw.

Question 18

Pulley

Answer 18

<p>A type of lever that is a wheel with a groove in its rim, which is used to change the direction or multiply a force exerted by a rope or cable.</p>

Question 19

Resistance Force

Answer 19

Impeding effect exerted by one material object on another.

Question 20

Screw

Answer 20

<p>An inclined plane wrapped around a cylinder, forming the path and pitch.</p>

Question 21

Simple Machine

Answer 21

Any of various elementary mechanisms including the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw.

Question 22

Sprocket

Answer 22

A toothed wheel whose teeth engage the links of a chain.

Question 23

Static Equilibrium

Answer 23

<p>A condition where there are no net external forces acting upon a particle or rigid body and the body remains at rest or continues at a constant velocity.</p>

Question 24

Technical Communication

Answer 24

Creating, designing, and transmitting technical information so that people can understand it easily and use it safely, effectively, and efficiently.

Question 25

Torque

Answer 25

<p>A force that produces or tends to produce rotation or torsion.</p>

Question 26

Wedge

Answer 26

<p>A substance that tapers to a thin edge and is used for splitting, raising heavy bodies, or for tightening by being driven into something.</p>

Question 27

Wheel and Axle

Answer 27

<p>Two different sized circular objects that are attached together and turn as one.</p>