P8 Force Basics Flashcards
What is an interaction pair?
A pair of equal and opposite forces that act on 2 objects
What is weight?
The force exerted on an object due to the influence of gravitational field strength on it
What is work done?
The energy transferred when a force moves an object through a distance
At which point on an object does its weight appear to act?
Its centre of mass
How can weight be measured?
Using a calibrated spring balance/newton meter
What is the centre of mass of an object?
The point at which its weight appears to act
How can friction lead to an increase in temperature?
Energy is transferred mechanically from the kinetic stores of the moving objects to the thermal stores of their surfaces
What is resolving a force?
Splitting a force into 2 perpendicular forces that have the same effect as the one
