Effects of Force

Effects of force

Moving a stationary object, stopping a moving object and changing the speed of an object that is in motion

A float object

Buoyant force equals to the weight of the object

A submerge object

Buoyant force is less than the weight of the object

Lever

A bar that rotates on a fixed point

Purpose of a lever

Allows us to do work easily an allows us to use minimal force to do work

Three parts of a lever

Effort, load and fulcrum

First class lever

Fulcrum is between load and effort

Second class lever

Load is between fulcrum and effort

Third class lever

Effort is between fulcrum and load

Moment of force

A force acting on an object can rotate the object at a fixed point (pivot or fulcrum)