WorksheetsGrade 8 Technology M22- Calculating mechanical advantage
Total questions: 8
Worksheet time: 4mins
Mechanical advantage is.......
the increase in the distance of the fulcrum
the force-amplifying effectiveness of a simple machine
always present in third class levers
If a lever has an effort arm of 3 m and a load arm of 1.5m what will the mechanical advantage be?
MA = 2
MA = 1.5
MA = 3
Choose the correct formula for calculating mechanical advantage for levers
length of effort arm/length of load arm
power of effort arm/length of load arm
length of effort arm/length load
Larger gears produce more power than smaller gears.
TRUE
FALSE
Driver gears give.......force
input
output
either input or output
The diameter is a....
line that runs around the circle
straight line that run from the middle of a circle to the edge
straight line that runs across the centre of a circle
The formula for calculating the gear ratio using the diameter is......
diameter of driver gear/diameter of the driven gear
diameter of output/diameter of the driven gear
diameter of driver gear/diameter of the output
If the input speed of a gear system is 80rpm and the gear ratio is 2, the output speed will be 40rpm.
True
False
