Mechanics Flashcards
Define: Newton’s Second Law
The acceleration of an object depends on its mass and the force applied
Define: Resultant Force
A single force which represents the combination of the forces acting on an object
What does the gradient of a distance-time graph show?
Velocity
What does the gradient of a velocity-time graph show?
Acceleration
What does the area under velocity-time graph show?
Distance travelled
Define: Acceleration
The rate of change of velocity
Change in velocity/time
Define: Stopping distance
Thinking distance + Braking distance
Define: Terminal velocity
The maximum speed an object can reach due to the balance of forces
Define: Weight
The mass of an object times gravitational field strength
Define: Hooke’s Law (Elasticity)
The extension of an elastic object is directly proportional to the force applied, provided the limit of proportionality is not exceeded.
Define: Work done
The energy transferred when a force causes an object to move a certain distance
Define: Power
The rate of work done or rate of energy transferred
Define: Gravitational Potential Energy
The energy an object has because of its position in a gravitational field
Define: Elastic Potential Energy
The energy stored in a stretched or squashed object
Define: Kinetic Energy
Movement energy: dependent on mass and velocity2
