A rollercoaster car at the top of the hill, an archer preparing to release an arrow, and a lake that sits above a dam are all examples of what kind of energy?
potential energy
kinetic energy
gravitational energy
consumption of energy
The conversion of stored potential energy into kinetic energy can also be harnessed to power homes, factories and entire cities. Which example from the text supports this conclusion?
the softball pitcher
the slingshotting comet
the archer
the Hoover Dam
Which of the following conclusions is supported by the text?
Nuclear power is the most efficient kind of energy for powering cities.
Professional athletes should study the science of energy to play better.
Dams power cities by converting stored potential energy into kinetic energy.
Drought is a serious problem for farmers in the American Southwest.
Choose the answer that best completes the sentence below.
“The conversion of stored potential energy into kinetic energy can be harnessed to power homes, factories and entire cities. __________, the Hoover Dam provides power to California, Nevada and Arizona."
Even though
Initially
For instance
However
What is this passage mainly about?
The movement of comets through our solar system.
The scientific forces behind our favorite roller-coasters.
The unusual properties of water molecules in rivers.
The conversion of potential energy into kinetic energy.
