Physics Energy 2.1 - 2.3 Flashcards
What does the conservation of energy state
The conservation of energy states that energy cannot be destroyed or created, it can only be transferred or transformed into different forms
What is thermal energy
Thermal energy is energy that is contained within a system that is responsible for it’s temperature
What is kinetic energy
Kinetic energy is the energy an object has because of its motion
What is gravitational potential energy
Gravitational potential energy is energy an object has due to the forces of gravity
What is the formula for kinetic energy?
Ek = 1/2 mv^2
What does the Ek stand for in the kinetic energy formula?
The E stands for energy and the K stands for kinetic
What does the m stand for in the kinetic energy formula
The m stands for the mass given in kilograms
What does the v^2 stand for in the kinetic energy formula
It stands for the velocity of the object squared
What units are kinetic energy given in?
Since it’s a form of energy, it is given in Joules
What is gravity
Gravity is a force of which its magnitude depends on the mass and distance of the object that it’s acting on
What is an energy store
An energy store is a store for energy
What is the formula for gravitational potential energy
Ep = mgh
What is the Ep in the gravitational potential energy formula?
It stands for gravitational potential energy given in joules
What is the m in the gravitational potential energy formula?
It stands for mass, given in kilograms
What is the g in the gravitational potential energy formula?
It stands for gravitational field strength, given in newtons/kg
