ASVAB Mechanical Comprehension Exam
Study Guide.
Force - answermass × acceleration
vector quantities - answerforces that has both size and direction
equilibrium - answera stable situation in which forces cancel one another
velocity - answerthe speed and direction of a moving object
accelerat...
vector quantities - answer✔forces that has both size and direction
equilibrium - answer✔a stable situation in which forces cancel one another
velocity - answer✔the speed and direction of a moving object
acceleration - answer✔the rate at which velocity changes
pressure - answer✔force (in pounds) ÷ area (in inches)
work - answer✔force × distance
tension is measured in - answer✔pounds-force or newtons
work is measured in - answer✔foot-pounds
power - answer✔work ÷ time
power is measured in - answer✔horsepower (hp)
1 horsepower - answer✔33,000 foot-pounds per minute or 550 foot-pounds per second
mechanical advantage - answer✔when a machine multiplies the force you use
mechanical advantage - answer✔resistance ÷ effort = output force ÷ input force
fulcrum - answer✔point of support to reduce resistance and multiply the effect of effort
resistance arm - answer✔the part of a lever that applies a force on an object
effort arm - answer✔the part of a lever that you apply an input effort force to.
to determine how much a lever reduces the amount of effort needed to do work - answer✔length
of effort arm ÷ length of resistance arm = resistance force ÷ effort force
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