Energy & Heat
The definition of kinetic energy
What is energy that is in motion?
The definition of potential energy
what is energy that is stored?
The definition of heat
what is energy that is transferred as a consequence of temperature differences
The relationship between work and energy (define energy)
What is, "energy is the ability to do work"?
Give examples of kinetic energy
what are heat, lightening, flames ?
Give examples of potential energy
what are any substance has potential energy- wood, coal, metals ?
An object is gaining energy when its temperature does what ?
what is goes up?
A calorie (lower case c ) is used by _____ and the kilocalorie or Calorie (upper case C) is used by _______
what are chemists and food scientists?
Distance are force are both required to calculate ____.
What are distance and force are both are both required to calculate work.
The difference between kinetic and potential energy
what is kinetic energy is energy in motion and potential energy is energy that is stored
An orange is an example of _____ energy
what is potential energy ?
An object is losing energy when its temperature does what?
what is goes down?
The amount of energy needed to raise the temperature of 1 gram of water by 1 degree Celsius is
what is a calorie (lower case c)?
The first law of thermodynamics in your own words (will be on test for 8pts)
Energy can only change forms- thus it can not be lost or made.
define specific heat
what is the amount of energy necessary to heat 1 gram of a substance by one degree celsius
The heat in the flame of a burning candle has always been there- it was not created- it was stored in the candle and the surrounding oxygen. The lighting of the candle released the energy to be a flame.
The plants absorb the solar energy from the sun-rather than make it. They convert the solar energy into chemical energy. This produces (not creates or destroys) energy into oxygen.*
An ice cube melts and converts to water in just a few minutes. This phenomenon happens because the ice absorbs the heat from the surrounding air (not by making new energy, but rather converting existing energy). This coold the air and changing the ice to water -- it does not get rid of the energy it, causes a change in the state of the ice.*
*https://tuitionphysics.com/july-2021/first-law-of-thermodynamics-interesting-everyday-examples/
What are examples of thermodynamics?
if the specific heat of copper is 100 times larger than silver and and 5 times larger than gold and equal masses of each have the same initial temperature and are given the same amount of heat, which ends up the hottest?
what is gold?
gold has smallest specific heat so it is easier to heat