POE final review 1

Question 1

A _ produces elecricity through a chemical reaction between a fuel and oxygen.

Accepted Answer

fuel cell

Question 2

___ is calculated by multiplying the force times the distance traveled.

Accepted Answer

work

Question 3

Stress is

Accepted Answer

E*strain

Question 4

What is the max elongation at the point when the mild steel would have returned to its or dimen

Accepted Answer

1mm

Question 5

Stress is

Accepted Answer

force divided by area

Question 6

What is the IMA of the wagon?

Accepted Answer

3.75

Question 7

An energy source that will never run out

Accepted Answer

inexhaustible

Question 8

What is mod of elasticity? 1kN=225lb, 1in=25.4mm. initial length is 2in and diameter=0.1in

Accepted Answer

50M

Question 9

Another name for an input force is

Accepted Answer

effort

Question 10

A force 50lbs is applied to 1' diameter wheel. The wheel turns a 0.25" axle. What is the MA?

Accepted Answer

48

Question 11

What is the efficiency of the incline plane?

Accepted Answer

67%

Question 12

the collection and analysis of numerical data in large quantities

Accepted Answer

statistics

Question 13

What is the AMA of the incline plane?

Accepted Answer

2.5

Question 14

Strain is

Accepted Answer

elongation / original length

Question 15

The ratio of energy used to energy delivered

Accepted Answer

efficiency

Question 16

The fixed point of rotation on a lever is what?

Accepted Answer

fulcrum

Question 17

Neglecting air resistance, the horizontal component velocity of a projectile will

Accepted Answer

remain constant

Question 18

What is the resistance moment?

Accepted Answer

96 ft-lb

Question 19

A car's engine turns an axle(effort) that turns a much larger wheel. What is the MA?

Accepted Answer

between 0 and 1

Question 20

A pulley with 3 supporting strands would require how much force to lift 30lbs?

Accepted Answer

10

Questions 20