Energy Transformations
Name an object that transforms electrical energy into light energy.
What is a lamp, flashlight, TV, night light, etc...
Light and heat energy from the sun is known as ______ energy.
What is solar?
Name a disadvantage of using wind energy.
Cannot be used everywhere - depends on the amount of wind in an area
Need a lot of space for wind turbines
Hurts the bird population
The transfer of electrical energy through a material is called electric ________.
What are electric currents?
Name the type of energy resources that will eventually run out.
What are nonrenewable resources?
Name an object that transforms electrical energy into thermal energy.
What is a microwave, a stove, electric fireplace, etc.
The energy of heat is called ________ energy.
What is thermal energy?
Name a disadvantage of using hydroelectric (water) energy.
Cannot be used everywhere - depends on location near moving water
Can disrupt the fish population
Expensive to build a dam
The material that electrical energy can travel through easily.
What is metal?
Name the type of energy resources that will never run out.
What are renewable resources?
Name an object that transforms electrical energy into sound energy.
What is a radio, TV, cell phone, etc.
Two renewable energy resources that transform energy of motion into electrical energy.
What are wind and water?
Name a disadvantage of using nonrenewable resources such as coal, oil, and natural gas?
Resources will eventually run out
Harms the environment
A complete path through which electric currents can pass.
What is an electric circuit?
The name of a source of energy that formed from the remains of plants and animals that lived millions of years ago. Examples are coal, oil, and natural gas.
What are fossil fuels?
Name an object that transforms electrical energy into energy of motion.
What is a fan, blender, remote control car, etc.
Sound is created when something moves and the air particles around it ___________ (rapid back and forth movements).
What is vibrate?
Name one advantage of using renewable energy resources.
The resources will never run out.
They do not cause pollution.
A circuit must be ________ for electrical energy to pass through.
What is closed?
Name one reason why people continue to use nonrenewable resources.
They are cheap to use since we already have everything in place.
Convenient