Science Test #2 Energy and Compounds Flashcards
all about Energy and Compounds
Energy that is stored is called
Potential Energy
True or False
Heat can be energy
True
True or false
Light is Not a Type of energy
False
True OR False
There is no such thing as nuclear energy
False
True or False
Chemical Energy is real
True
True or False
Energy can be electrical
True
Energy of motion is called ________
Kinetic Energy
The transfer of energy by collisions between the atoms in the material is called
Conduction
A measure of the average kinetic energy in an object
temperature
Energy is released
When bonds form
energy must be added
to break bonds
a transfer of energy from one object to another due to a difference in temperature
heat
compounds are broken down, new compounds are formed, or both
chemical reaction
________ is the transfer of energy by collisions between the atoms in a material
conduction
An energy transfer that causes a temperature change is ________
Heat
__________ energy is the energy stored in the chemical bonds of a substance
chemical
___________ transfers heat when particles move from one place to another
convection
The transfer of energy by waves in all directions from its source is
radiation
if you put a spoon in a cup of hot water it will come out hot what is this called
conduction
a furnace is heat coming from a vent what is this called
radiation
if you leave an egg in vinegar and wait the shell will melt off what is this called
convection
chemical ___________ __________ stored in oil gas and coal is used every day
potential energy
scientist refer to the potential energy within chemical bonds as _________
chemical energy
Energy is stored in the _________ between the atoms in a compound
bonds
muscles in your body transform chemical energy into ________ _______ and heat when they move
kinetic energy
in chemical reactions chemical bonds ______ between some particles and ______ between other particles
form between some and break between others
chemical reactions that absorb energy are called
Endothermic reactions
A photosynthesis reaction in a plant cell transforming energy from sunlight into chemical energy is an
Endothermic Reaction
Living things depend on ________ for food and oxygen
photosynthesis
Exothermic reactions are chemical reactions that _____ energy
release
rates of chemical reactions can be changed by a substance called a ________ whose own structure is not changed by a reaction
catalysts
greater amounts of sugar will dissolve in water if the water is _____
Hot/heated
your body relies on biological catalysts called _______ to control cell possess
Enzymes
True of false
in a chemical reaction the state of a substance changes but the substance itself is not changed
false
True or false
rusting is a chemical reaction that occurs when metal combines with oxygen
True
True or False
All chemical reactions occur at the same rate
False
True or False
Every chemical reaction includes some energy transformation
True
True or False
not every chemical reaction gives off energy
True
