_____________increases the strength of a push or a pull, or the distance of a movement, to do a task. ​
(1 Punto)
machine
levers
simple machine
pulleys
screws
gears
complex machines
14
_______ is built up from two or more simple machines such as levers, wheels and pulleys.(1 Punto)
machine
levers
simple machine
pulleys
screws
gears
complex machines
15
What kind of simple machine is this?(1 Punto)

pulley
gears
screw
levers
Esta pregunta es obligatoria.
16
What kind of simple machine is this?(1 Punto)

pulley
gears
screw
lever
Esta pregunta es obligatoria.
17
What kind of simple machine is this?(1 Punto)

pulley
gears
screw
lever
Esta pregunta es obligatoria.
18
What kind of simple machine is this?(1 Punto)

pulley
gears
screw
lever
Esta pregunta es obligatoria.