Sp2 Flashcards
Resultant force
All the forces on an object combined
Newton’s first law
An object will continue to move unless another force acts on it
An object will stay stationary unless a force acts on it
Centripetal force
The force that pulls object to the centre of a circle
How is weight measured
Force meter in Newtons
Newton’s second law
The acceleration of an object depends on its mass and the size of force
Equation for force
Force = mass x acceleration
Weight
Measure of the pull of gravity of an object
Mass
The quantity of matter there is in an object
Newton’s third law
When two objects interact, they both exert equal and opposite forces on each other
Equilibrium
Situation where neither object is moving
Equation for momentum
Momentum = mass x velocity
Equation linking force and momentum
Force =change in momentum / time
Stopping distance equation
Stopping distance = thinking distance + braking distance
Equation for work done
Work done = force x distance moved in direction of force
