Hydroelectric energy refers to an alternative energy resulting from the hydrologic cycle of ________
what is water
200
Kinetic energy is _________ energy
What is moving?
200
In a waterfall, potential energy is transferred to ___________
What is kinetic energy?
200
Movement of machine parts
What is mechanical energy?
200
a hydroelectric plant uses falling _______ to turn the turbine.
what is water
300
In order to give a ball more kinetic energy, you must do more ________?
What is Work?
300
potential energy equation
What is PE=mgh?
300
Collision in which potential energy is completely converted back into kinetic energy
What is elastic collision?
300
hydroelectric power plants produce electricity, which a power source is used to turn a propeller-like piece called a_________, which then turns a metal shaft in an electric generator.
what is a turbine
400
Kinetic energy of a ball at the bottom of a hill equals________.
What is potential energy at the top?
400
plays a major role in GPE
What is gravity?
400
Energy is not lost or created but ___________.
What is transformed?
400
an _______ is the motor that produces electricity.
what is an electric generator
500
You’re applying 4000 N of force to a hockey puck with a mass of 0.20 kg. It travels over a distance of 0.10 m on a frictionless ice rink. What is the puck’s final speed?
What is 126.5 m/s?
500
You are floating in your space suit about 1,000 m from the moon's surface and your mass is 61kg. What is your potential energy? (gravity of the moon is 1/6 of the Earth)
What is 99,430 J?
500
Head on car crash
What is inelastic collision?
500
Hydroelectricity is the most widely used form of what type of energy?