P10 - Force and motion Flashcards
What is the equation for stopping distance?
Stopping distance = Thinking distance + Breaking distance
What is the equation for Momentum?
Momentum (Kg m/s) = Mass x Velocity (m/s)
What is momentum?
The tendency of an object to keep on moving in the same direction
What is the symbol for Momentum?
p
What is the unit for Momentum?
Kg m/s
What is the unit for Mass?
Kg
What is the equation for momentum?
Momentum = mass x velocity
What is Newtons second law in P10?
The acceleration of an object is directly proportional to the force
What factors affect thinking distance?
Tiredness
Alcohol
Distractions
Which factors affect braking distance
How fast you are going
Road conditions
The condition of your tyres
What is elastic deformation?
When a spring is stretched it can return to its original length
What is inelastic deformation?
When a spring is stretched, its length is permanently altered
What is the limit of proportionality?
The length a spring can be stretched before it can no longer return to its original length
What is the Hookes Law equation?
Force applied = spring constant x Extension
What is the unit for Extension?
Metres