Font size
WorksheetsEnergy Theorem and Thermal Energy
Total questions: 23
Worksheet time: 12mins
If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________
one reaches a temperature of zero
they both have an equal temperature
one runs out of energy
When a popsicle melts, the particles in the popsicle _____.
gain thermal energy and speed up
there are no particles in popsicles
lose thermal energy and slow down
stay the same
The 2 factors that determine an objects thermal energy
weight
mass
temperature
total kinetic energy
The more mass an object has the_____________ thermal energy it has.
more
less
Thermal Energy is the sum of the potential and kinetic energy of ALL the particles in an object.
True
False
What is the Law of Conservation of Energy?
matter cannot be created or destroyed
energy cannot be created or destroyed, only transformed/transferred
what goes up must come down
For every action, there is an equal and opposite reaction.
What is potential energy?
Energy that occurs when there is movement
Energy that is released when a chemical reaction takes place
stored energy; energy due to the height of an object
comes from a substance whose molecules and atoms are vibrating faster due to a rise in temperature.
What is kinetic energy?
energy from motion/movement; the faster the object is, the higher this type of energy
stored energy; energy due to the height of an object
comes from a substance whose molecules and atoms are vibrating faster due to a rise in temperature.
Energy that is released when a chemical reaction takes place
The faster an object moves, the more _______________ it has.
thermal energy
potential energy
chemical energy
kinetic energy
temperature of a substance is determined by_______________
how fast the molecules of a substance are moving
how slow the molecules of a substance are moving
how hot or cold it is
what the thermometer says
The Independent Variable is
the variable that you observe in an experiment
the variable in an experiment that you change
variables that remain the same in an experiment
the variable you you tell other people about
the variable that you observe in an experiment - it changes DEPENDING on changes to another variable
Independent Variable
Control Variable
Dependent Variable
variables that remain the same in an experiment
Control Variable
Independent Variable
Dependent Variable
Extra Variable
What happens to an object's Potential Energy as it falls?
It is transformed into kinetic energy
It is transformed into thermal energy
It is transformed into chemical energy
It is transformed into solar energy
How are particles affected by temperature?
they move the same no matter what temperature
they move slower when the temperature rises and faster down when the temperature falls
they leave when the temperature rises and come back when the temperature falls
they move faster when the temperature rises and slow down when the temperature falls
The higher temperature an object has, the ___________ thermal energy it has.
more
less
same
What is the relationship between temperature/thermal energy and kinetic energy?
more higher the temperature or thermal energy, the lower the kinetic energy
they do not affect each other
more higher the temperature or thermal energy, the higher the kinetic energy; the lower the temperature, the kinetic energy decreases
temperature or thermal energy causes kinetic energy to stop
The more mass an object has, the more kinetic energy it has.
True
False
