Mechanical Advantage and Efficiency in Simple Machines Quiz
Test your knowledge on mechanical advantage, efficiency, & simple machines with questions on formulas, types, & effects of friction.
#1
What is mechanical advantage in a simple machine?
The ratio of output force to input force
The energy transferred by the machine
The speed at which the machine operates
The distance over which the machine works
#2
Which of the following simple machines has a mechanical advantage equal to 1?
Inclined plane
Lever
Wheel and axle
Screw
#3
What is the formula to calculate mechanical advantage of a simple machine?
MA = output force / input force
MA = input force / output force
MA = work output / work input
MA = output distance / input distance
#4
A pulley system with four supporting ropes has a mechanical advantage of:
#5
Which of the following simple machines is an example of a first-class lever?
Screwdriver
Wheelbarrow
Nutcracker
Scissors
#6
What happens to mechanical advantage when friction is present in a simple machine?
It increases
It decreases
It remains the same
It becomes negative
#7
What is the mechanical advantage of an ideal pulley system with no friction?
#8
What is the efficiency of a simple machine?
The ratio of work output to work input, expressed as a percentage
The speed at which the machine operates
The ratio of input force to output force
The mechanical advantage of the machine
#9
Which of the following simple machines has a mechanical advantage that varies with the distance from the fulcrum?
Inclined plane
Wheel and axle
Screw
Lever
#10
What is the ideal mechanical advantage of a machine?
The mechanical advantage measured in an ideal situation with no friction
The mechanical advantage measured in a real-world situation with friction
The highest possible mechanical advantage for a given machine
The mechanical advantage measured when the machine is operating at maximum efficiency
#11
Which of the following is an example of a compound machine?
Pulley system
Screw
Inclined plane
Scissors
#12
What is the formula for calculating efficiency of a machine?
Efficiency = (work output / work input) * 100%
Efficiency = work output / work input
Efficiency = input force / output force
Efficiency = output force / input force
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