machines - objects that are designed to make work easier, lever - consists of a rod free to move about a balancing point, fulcrum - the fixed point on which the lever turns, load - this is the object that is being moved by the machine, effort - this is the force applied to make the lever work, newtons - measurement of force, pulley - simple machine made with a rope (belt or chain) wrapped into the groove of a wheel, inclined plane - consists of a sloping surface, lubricant - reduces friction between two surfaces, inefficient - the energy required to do work is wasted in overcoming friction,

Bảng xếp hạng

Phong cách trực quan

Tùy chọn

Chuyển đổi mẫu

Bạn có muốn khôi phục tự động lưu: không?