During which strokes does the piston move downward in a four-stroke internal combustion engine? intake and exhaust compression and exhaust power and intake compression and power

Here are the strokes in a 4-stroke engine:

1). intake ... \/

2). compression ... /\

3). power ... \/

4). exhaust ... /\

The piston is moving upward during the intake and power strokes.

hèllo, sorry i really need some more points so if you need this qustion answered than retype it

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever