Energy Flashcards
(17 cards)
What is energy?
Energy is the capacity to do work and exists in various forms
The conservation of energy states that ____________
Energy can be transformed from one form to another but cannot be created or destroyed
What is Potential energy?
Potential Energy (PE), Is the stored energy of an object
Think about it like the objects’ “potential”
What is the formula for Potential Energy (PE)?
PE = mgh
M stands for mass, g stands for gravity*, h stands for height (multiply)
The gravity of the earth is constant, the gravity is 9.81 or 9.8
What is Kinetic energy (KE)?
kinetic energy is the energy that an object has due to its motion
What is the formula for Kinetic Energy (KE)?
KE= 0.5 × m × v2
M is mass, v is velocity (speed), and 2 is the exponent on v.
For exponents, you have to multiply the number by its self
What is Mechanical Energy
The sum of kinetic and potential energy in a system, associated with the motion and position of objects
What is Thermal Energy
Energy related to the temperature of an object, arising from the movement of its particles
Chemical Energy is the _____________.
energy stored in chemical bonds, released or absorbed during chemical reactions.
What is Electrical Energy
Energy resulting from the movement of electrons through a conductor
An electron is a particle with a negative charge
Nuclear Energy
Energy released during nuclear reactions, such as fission or fusion, involving changes in an atom’s nucleus
What is Fission
Fission is a nuclear reaction in which the nucleus of an atom splits into two or more smaller nuclei, releasing a large amount of energy in the process.
What is Fusion
Fusion is a nuclear reaction where two light atomic nuclei combine to form a heavier nucleus, releasing a large amount of energy in the process
Electromagnetic Energy is the energy that ________
Travels in waves and broad specrums
Electromagnetic Energy can travel from long radio waves and short gamma rays
Sound energy
Energy produced by vibrating objects, transmitted through a medium as sound waves
Gravitational Energy
Potential energy associated with the gravitational field, depending on an object’s mass and height
Elastic Energy
Potential energy stored in objects that can be stretched or compressed, like springs or rubber bands
