Measure Flashcards
(50 cards)
For very precise angle measurements, degrees are divided into _____ and ______.
Minutes and seconds
The force of gravity on an object is its _____. The measure of how much matter is in an object is its _______.
weight, mass
If a force of 250lbs acts on a an object and moves it 10feet, how much work has been done?
2500ft lbs (W=FxD)
The rate at which work is done is called _______. It is measured in __________.
Power, foot-pounds per second
The amount of work a particle can do in going from a negative plate to a positive plate, divided by the amount of electrical (?)
Potential difference
What kind of charge does an electron carry?
Negative
The number of electrons inside a battery is always
Constant
Electrical energy per unit of charge is measured in
VOLTS
Potential difference is the difference in electrical _______ between two plates.
- Charge
- Current
- Potential Energy
- Resistance
Potential energy
One joule per second is called one
- Amp
- Ohm
- Volt
- Watt
Watt
SI base units include length, mass, time, temperature, and ______.
Electric current
The prefix “milli” indicates one…
Thousandth
The ampere is the SI base unit for measurements of
current
When should you convert metric measurements to standard US measurements?
As rarely as possible
Work is the product of force and _________. It is expressed in ________.
Distance; Joules
What is the decimal equivalent to 5/8”?
0.6250
In a clearance fit, two parts fit together
With a little room to spare
Which tool is used in layout work for scribing circles and transferring dimensions between a scale and the work?
- divider
- micrometer
- scriber
- vernier
Divider
What is the reading on the vernier scale below?
3.059
A vernier scale indicates zero when _______ align with marks on the main scale
Both ends
A balanced dial on a dial indicator is graduated in ______ direction(s) from zero. It is used for _______-way comp(?)
both; two
If the hole is too large, which end(s) of a “go, no-go” plug gauge will fit into the hole?
Both ends
Surface roughness is measured in
- Centimeters
- microinches
- millimeters
- nanoinches
Microinches
During production, the harness of small parts is often checked by means of the highly sensitive _________ hardness test.
Vickers