Mechanical advantage of the wheel axle is $\mathrm{M}.\mathrm{A}=\frac{\mathrm{Radius} \mathrm{of} \mathrm{the} \mathrm{wheel}}{\mathrm{Radius} \mathrm{of} \mathrm{the} \mathrm{axle}}$

_____ is the simple machine that is used to chop the tree trunk.

Choose the right word and fill in the blank provided below.

[Pulley / Screw / Wedge]

Name the below simple machine: _____.

The above-shown figure is of which simple machine: _____. [pulley/screw/wedge]

The above-shown figure is of which simple machine: _____. [pulley/wheel and axle/wedge]

Identify the image, choose the correct word from the following:
(Screw, Inclined plane, Pulley)

_____ is a simple machine.

The above-shown figure is of which simple machine: _____ [pulley/wheel and axle/wedge]