Science Chapter 6

Solar energy, wind energy, and hydroelectric energy are all forms of renewable resources.

A dam works by blocking the flow of water on a river. A reservoir forms behind the dam. To produce electricity, water is allowed to flow downward through the dam. The moving water turns a large, fan like turbine. he spinning turbine causes a generator to turn, producing electricity.

Most small student calculators run on solar energy. Where would these calculators not work?

When you see lighting and hear thunder what energies are taking place?

Estimates are that 90 percent of a standard light bulb's energy consumption is just wasted heat, and only about 10 percent of its power is used to generate light. Light bulbs use electrical energy and produce what?

Objects have potential energy because of their_____________.

Hydro from the word hydroelectric energy means?

Buck Lake Elementary is thinking about installing solar panels to power the school. Each classroom needs 4 solar panels and their are 50 classrooms. How many solar panels are needed for the entire school?

Sound energy is the vibration of air. The faster and slower the vibrations determine what?

Mr. Howard pulls the TV cart on a flat sidewalk. Which is the source of energy that moves the cart?

How is sound energy produced when you strike the top of a drum?

When you are and adult a major source of alternative energy will be solar energy. What is a benefit of using solar energy?

Mr. Howard in hungry. He puts a pizza in a gas oven. What form of energy cooks the pizza?

Electrical energy changes to light energy and heat energy when you turn on a light switch.

Mr. Howard is demonstrating kinetic and potential energy in class by jumping up and down. When he jumps up into the air there is a moment at the highest point where he stops moving right before he begins coming back down to the ground. What energy does he have at that highest point?

Mrs. Adams using a spring to send a ball into the air. She compresses a spring and shoots a ball 10 m. into the air. Mr. Howard squeezes the spring half the size of Mrs. Adams. How far will his ball go?

Which of these is a renewable resource?

What properties are used to describe sound?

________ energy is the energy something has because of its condition or position.

Find the answer that is NOT an example of chemical energy.