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Unit 1 Key Terms Review
Test Description: Created to help students review the PLTW Unit 1 Key Vocabulary Terms
Instructions: Answer all questions to get your test result.
1) The recognized accreditor for college and university programs in applied science, computing, engineering, and technology.
A
ABET
B
ANE
C
ASME
D
ACT
2) The ratio of the magnitude of the resistance and effort forces applied to a system.
A
actual mechanical advantage
B
efficiency
C
ideal mechanical advantage
D
moment
3) A continuous band of tough flexible material used to transmit motion and power within a pulley system.
A
gear
B
sprocket
C
belt
D
chain
4) 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.
A
chain
B
belt
C
gear
D
sprocket
5) The external force applied to an object
A
resistance force
B
effort force
C
pitch
D
moment
6) The ratio of useful energy output to the total energy input, or the percentage of work input that is converted to work output.
A
resistance force
B
effort force
C
static equilibrium
D
efficiency
7) The resistance that one surface or object encounters when moving over another.
A
moment
B
resistance force
C
friction
D
torque
8) A circular toothed objected used to transfer rotary motion and torque through interlocking teeth.
A
sprocket
B
gear
C
chain
D
pulley
9) Ratio of distance traveled by the applied force and resistance force within an system.
A
actual mechanical advantage
B
ideal mechanical advantage
C
efficiency
D
idler gear
10) A gear positioned between the driver and the driven gear used to change rotational direction.
A
gear
B
wheel and axle
C
idler gear
D
sprocket
11) The structure of or the relationship of the parts in a machine or in a construction or process comparable to the machine.
A
mechanism
B
moment
C
static equilibrium
D
simple machine
12) 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 a force.
A
static equilibrium
B
torque
C
moment
D
fulcrum
13) The distance between adjacent threads in a screw
A
wedge
B
moment
C
gear
D
pitch
14) Impeding effect exerted by one material object on another.
A
moment
B
resistance force
C
effort force
D
torque
15) An inclined plane wrapped around a cylinder, forming the path and pitch.
A
screw
B
pulley
C
sprocket
D
wedge
16) A toothed wheel whose teeth engage in the links of a chain.
A
sprocket
B
idler gear
C
gear
D
belt
17) A condition where there is no net external forces acting upon a particle or rigid body and the body remains at rest or continues at a constant velocity.
A
moment
B
static equilibrium
C
ABET
D
technical communication
18) A force that produces or tends to produce rotation or torsion.
A
moment
B
pitch
C
torque
D
sprocket
19) A profession for which one trains and is undertaken as a long term vocation.
A
ABET
B
technical communication
C
career
D
belt
20) A substance that tapers to a thin edge and is used for splitting, raising heavy bodies, or tightening by being driven into something.
A
wheel and axle
B
inclined plane
C
pulley
D
wedge
*select an answer for all questions
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