Types of Energy
Increasing the speed of an object increases this type of energy.
Kinetic energy
List one renewable energy resource.
Wind, hydroelectric, solar, biomass, geothermal
Pools stay cool in the summer because water has a ________ specific heat.
high
kinetic
_________ is the ability to do work or cause change.
Energy
The form of energy in fossil fuels is...
Chemical potential energy
List an ADVANTAGE of fossil fuels.
They are widely available
Boiling water is an example of heat ____________. (method of thermal energy transfer)
Convection
Thermal energy is defined in terms of ___________ and ____________ energies
kinetic and potential
When two billiard balls hit each other and bounce off, which type of collisions occurs?
Elastic
A burning fire takes ___________ energy and transforms it into __________ energy and __________ energy
chemical; radiant/light; thermal; sound
Hydroelectric power uses ______________ as a renewable energy resource.
moving water
An example of a material with a low specific heat is a ____________.
metal
How long is thermal energy transferred through the process of heating?
Thermal energy is transferred until the temperatures of all particles in contact are the same.
The principle that keeps an object in motion unless acted on by an outside force is...
Newton's first law = inertia
This is the equation for total energy (mechanical energy for large scale objects OR thermal energy for particles).
total energy = potential energy + kinetic energy
a. Uranium
b. Natural gas
c. Solar power
a. nonrenewable
b. nonrenewable
c. renewable
In a refrigerator, the thermal energy is transferred first to the ____________, and then to the ______ of the ________.
coolant; back of the fridge
Distance
When action reaction forces are present, they are not considered balanced forces. Motion can still occur because the forces are action on _____________ ____________.
different objects
Friction converts ___________ energy into ____________ energy.
mechanical; thermal
List the three main forms of fossil fuels.
Petroleum/Oil
Coal
Natural Gas
To check if a stovetop is hot, you place your hand near the top of the stove and feel that it is warm without touching it. You can feel the heat from the stovetop because of ____________.
Conduction
List the three temperature scales spelled correctly and their freezing and boiling points of water.
Fahrenheit: 32 and 212
Celsius: 0 and 100
Kelvin: 273 and 373
When an object's volume expands due to the principle of thermal expansion, what happens to its mass?
The mass stays the same.