Machines
This type of machine trades force for distance to make tasks easier.
What is a simple machine?
This engine uses the pressure of boiling water to do mechanical work.
What is a steam engine?
This device spins a coil in a magnetic field to generate electricity.
What is a generator?
This measures how well an engine turns heat into work.
What is efficiency?
This renewable source uses falling or flowing water to spin turbines.
What is hydroelectric power?
This type of simple machine might be found in a jar lid
What is a screw?
This engine uses a difference in heat from one hot side and cold from the other to make air move pistons.
what is a Stirling Engine?
This part of a generator is turned by steam, wind, or water.
what is a turbine?
True or False: A perfectly efficient engine is possible.
What is false?
This fossil fuel is widely used but causes high CO2 emissions and air pollution.
What is coal?
This type of simple machine might be found in an elevator?
What is a pulley?
This is one of the earliest known steam engines, created by an ancient inventor.
what is the Hero's Engine?
This is the rate at which energy is used or work is done
What is Power?
Most engines lose energy due to this.
What is heat?
This energy source comes from underground and is reliable but only available in certain areas.
What is Geothermal Energy?
This machine is made from two or more simple machines working together.
What is a compound Machine
This vehicle uses a steam engine to move on tracks.
What is a train (steam locomotive)
This facility burns fuel or uses heat to produce electricity.
What is a power plant?
Why is efficiency important in engines?
Because it tells how much useful work is done compared to energy used. Less efficiency means more energy is wasted.
This renewable energy depends on moving air but can harm birds.
What is Wind Energy?
This overly complex machine performs a simple task in a creative way.
What is a Rube-Goldberg Machine?
This engine, found in most cars today, burns fuel inside the cylinder to move a piston.
What is an internal combustion engine?
This type of engine powers electric vehicles using magnets and electric current.
What is an EV (electric vehicle) Engine?
Name two ways to increase the power in a system.
What are increase the work done or decrease the time taken?
This type of power is generates using energy stored in uranium atoms
What is Nuclear Energy?