1. Pressure increases when the force increases or the contact area decreases.
2. The formula for calculating pressure is force divide the contact area.
3. The SI unit for pressure is : Pascal
4. Effects of forces are : A force can make a stationary object start moving. The distance moved by an object depends on the force applied on the object. If a larger force is applied, the object will move a greater distance. A force can change the shape of an object.
5. A force can make a moving object: Move faster Move slower Change its direction of movement Stop moving A force can change the shape of a moving object as a force can have high impact or low impact on the object it is applied to.
6. A force is either a push or a pull.
6.1. New node
7. The formula for force is mass times 10N,which is the gravitational pull of the earth.
