Vector has magnitude and direction e.g weight,velocity and force
What is mass?
Its how many particles there are in your body, it is measured in kilograms
What is weight?
its the force of gravity on your bodies mass, its measured in newtons
What is work done?
The amount of energy transferred
What is power?
the rate at which work is done
What is the conservation of energy?
Energy cannot be created or destroyed, only transferred or transformed from one form to another. Energy is wasted in the form of thermal/heat and transferred to the surroundings, causing the temperature of the surroundings to go up
What is resultant force?
The sum of all the forces. Balanced forces have a resultant force of zero and will either be stationary or move at a constant velocity, Unbalanced forces will accelerate in the direction of the bigger force
What does a free body diagram show?
all the forces acting on an object. The size of the arrow shows the relative magnitudes and the direction shows the direction of the force
What is the Hooke's Law?
It is extension that is directly proportional to force
