Enegy And Society II - SS3 Physics Past Questions and Answers - page 1
Which of the following energy conversion processes involves the transfer of heat?
Fuel cells
Hydroelectric power
Solar photovoltaic cells
Combustion engines
In a nuclear power plant, what is the primary energy conversion process?
Thermal to electrical
Nuclear to thermal
Electrical to nuclear
Mechanical to thermal
What is the primary energy conversion process in a hydroelectric power plant?
Mechanical to electrical
Nuclear to thermal
Thermal to mechanical
Gravitational potential energy to electrical
Which of the following devices converts chemical energy into electrical energy?
Wind turbine
Solar panel
Fuel cell
Battery
What is the primary energy conversion process in a photovoltaic cell?
Chemical to electrical
Solar to electrical
Mechanical to electrical
Nuclear to electrical
How is energy converted from electrical to mechanical?
Electric motors convert electrical energy into mechanical energy to power machinery and appliances.
How is hydroelectricity generated?
Hydropower plants convert the kinetic energy of moving water into electrical energy that can be used to power homes and buildings.
Which of the following is a major component of natural gas?
Carbon dioxide
Methane
Nitrogen
Oxygen
How is natural gas primarily transported?
Via trucks
Via pipelines
Via ships
Via trains
Which of the following is a disadvantage of using natural gas as a fuel source?
It is abundant and widely available
It produces low levels of greenhouse gas emissions
It is expensive to extract and transport
It has a low energy density