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WorksheetsCompound IMA Review for test
Total questions: 17
Worksheet time: 9mins
y=dx What is y if x=4 and d=6
2
10
24
3/2
y=k/x What is y if x=5 and k=20
4
100
25
1/4
y=dx If d decreases does y get larger or smaller
Smaller
Larger
y=k/x If x decreases does y get larger or smaller
Smaller
Larger
You have a compound machine with a gear train and a pulley and belt system. The driver gear (input gear) has 5 teeth. The output gear has 20 teeth. The input pulley has a diameter of 5 mm. The output has a diameter of 35 mm. What is the IMA of the entire machine? Use printed formulas
11
4
7
28
MA = out/in If you have two gears, one has 10 teeth. The other has 30 teeth. If you want the largest possible MA, which should be the driver (input gear)?
Either
The 30 tooth gear
The 10 tooth gear
MA = out/in If you have two gears, one has 50 teeth. The other has 25 teeth. If you want the smallest possible MA, which should be the driver (input gear)?
The 50 teeth gear
The 25 teeth gear
You have a lever system with a 3-meter long effort arm and a 0.5-meter long resistance arm. What is the IMA of the lever?
15
0.17
3.5
6
y=hx If h=6 and x=5, what is the value of y?
5
6
30
11
If a pulley system has a mechanical advantage of 4, what does that mean?
This means that it is 4 times easier to lift this load.
All of the above
This means you only need a quarter of the effort to lift the load.
For example, if you lifted 100 kg, it would only take 25 kg of effort.
You have a lever system with a 6-meter long effort arm and a 3-meter long load arm. What is the IMA of the lever?
6.5
0.5
2
6
y=dx If d=6 and x=2, what is the value of y?
2
12
8
3
MA = out/in If you have two gears, one has 70 teeth. The other has 35 teeth. If you want the largest possible MA, which should be the driver (input gear)?
The 70 teeth gear
The 35 teeth gear
y=kx If k=5 and x=4, what is the value of y?
1
20
9
10
You have a lever system with a 6-meter long effort arm and a 2-meter long resistance arm. What is the IMA of the lever?
4
0.33
3
8
If a compound machine consists of a lever with an MA of 4 and a pulley system with an MA of 3, what is the total MA of the machine?
12
0.5
1
7
The mechanical advantage of a compound machine can be found by:
Subtracting the work output from the work input
Multiplying the MAs of the individual simple machines
Adding the efficiencies of each simple machine
Dividing the input distance by output distance
