Machine change the size of force needed. change the distance(speed at which resistance moves. change the direction of the force applied. MAKE WORK EASIER. Three types of machine ideal, simple, and compound machine.
The Rube Goldberg that we did it didn’t work because some object didn’t move.
Lever machine is one of the simple machine. there’s a three class of levers 1st class, 2nd class, and 3rd class. example of 1st class is seesaw. example of 2nd class is wheel barrow. example of 3rd class is a bat.