Physics Flashcards
Vector
quantity that has both magnitude and direction
Scalar quantities
Magnitude
Speed
change of position of an object in any direction
Velocity
How fast and what direction it’s moving
Calculating acceleration
Acceleration equals change in velocity/change in time
Distance
The length between two points
What is stopping distance of cars
Thinking distance
Energy stores
the movement of objects and position of objects
Energy transfer
one form of energy into another
Kinetic energy
Movement of an object or chemical
Gravitational potential energy
the energy an object has due to its position above Earth, energy due to its height
Heat transfer
the movement of heat from one substance or material to another
Thermal conductivity
a material to conduct heat from one side to the other
Efficiency
the proportion of the energy supplied that is transferred in useful ways
Energy resources
any material that can be used as a source of energy
