why do we measure force in newtons

What are forces? A force can be a push or a pull. For example, when you push open a door you have to apply a force to the door. You also have to apply a force to pull open a drawer. You cannot see a force but often you can see what it does. Forces can change the speed of something, the direction it is moving in or its shape.


For example, an elastic band gets longer if you pull it. Forces can be measured using a force meter. Force meters contain a spring connected to a metal hook. The spring stretches when a force is applied to the hook. The bigger the force applied, the longer the spring stretches and the bigger the reading.


The unit of force is called the newton, and it has the symbol
N. So 100 N is a bigger force than 5 N. What is a force?. It is not something you can see or touch, but can see it in action. Forces can be measured using a device called force meter.


The unit of force is called the. It is represented by the symbol N. A force of 2N is smaller that 7N. A force usually results from an interaction. The interaction can be a physical one, or a non-physical one. Forces resulting from physical interaction are called ' ' and examples include Frictional, Tension, Air resistance and Spring force. ' and examples include gravitational, electrical or magnetic force.


Measuring forces Force meters contain a spring connected to a metal hook. The spring stretches when a force is applied to the hook. The bigger the force applied, the longer the spring stretches and the bigger the reading.


A Force diagram A force diagram is usually used to show the forces acting on an object. An arrow, with a name, length and direction is used to represent a force. In a force diagram, the longer the arrow, the bigger the force.