Meaning of symbols
Simple Machines
MA & IMA
Efficiency
Misc
100
The subscript r stands for this.
What is resistance?
100
The 6 simple machines.
What are screw, pulley, level, wheel & axle, wedge, inclined plane?
100
The ratio of resistance force to effort force.
What is mechanical advantage (MA)?
100
The number of different ways that we can calculated efficiency, or how many formulas we have.
What is three?
100
These are equal in an ideal machine.
What are work input and work output?
200
The subscript e stands for this.
What is effort?
200
Two or more simple machines.
What is a compound machine?
200
The MA, if the effort force is 10 and the resistance force is 20.
What is 2?
200
The efficiency, if the IMA = 3 and the MA = 2.
What is 66.7%?
200
All of this is transferred in an ideal machine.
What is energy? CANDY BONUS
300
The subscript o stands for this.
What is output. CANDY BONUS
300
The simple machine that is used to split wood.
What is a wedge? CANDY BONUS
300
The IMA, if the resistance distance is 20 and the effort distance is 40.
What is 2?
300
The efficiency, if the work input = 15 and the work output = 10.
What is 66.7%?
300
Work output can never be greater than work input because the machine cannot be a source of this.
What is energy?
400
The subscript i stands for this.
What is input?
400
The simple machine that is used in a triple beam balance.
What is a lever?
400
The ratio of effort distance to resistance distance.
What is ideal mechanical advantage?
400
The efficiency, if MA = 56.7 and IMA = 93.6.
What is 60.6%? CANDY BONUS
400
The difference in calculating MA & IMA.
What is MA uses force and IMA uses distance?
500
The letters in IMA stand for this.
What is ideal mechanical advantage?
500
Simple machine that is used in ice skating.
What is a wedge?
500
The product of the mechanical advantages of the simple machines in a compound machine.
What is total mechanical advantage?
500
The efficiency, if the resistance force is 10, the effort force is 20, the effort distance is 20, and the resistance distance is 40.
What is 100%?
500
This can replace distance when calculating the IMA of levers and wheels & axles.
What are radii?
M
e
n
u