Forces

Forces

1. Weight and Mass

   • Mass
     • This is a measure of how much matter there is in an object
     • It is measured in Kg
     • Mass is constant
   • Weight
     • WEight is measured in N
     • WEight is the force gravity exerts on an object
     • The weight of an object changes from place to place
     • Weight = Mass x gravity

2. Density

   • Density = Mass/Volume
   • Kg/M^3

3. Measuring and Drawing Forces

   • Forces are measured in N
   • We can measure forces using a Newton Meter
     • The larger the force the more the spring extends
   • Drawing Forces
     • The larger the arrow the larger the force

4. Balanced And Unblanced Forces

   • Balanced
     • The object will remain stationary
     • The object will carry on moving at a steady speed
   • Unbalanced
     • The object may speed up
     • Slow down
     • Stop moving
     • Start moving
     • Change direction