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What is energy?
The ability to do work, to make things happen and to cause changes.
Which is the most important source of light energy?
The sun
This is the energy stored in uranium.
Nuclear energy.
What type of light bulb uses the least amount of energy?
LED light.
When we burn wood in a fire, we are converting this form of energy into heat energy.
Chemical energy.
What is the name of the energy related to movement?
Kinetic or mechanical
The most common and useful form of energy in our homes is...
Electrical energy.
This is the name for a type of energy that causes atoms to move quicker.
Thermal energy.
A light bulb converts electrical energy into, what energies?
Light and thermal.
This type of energy can be used over and over again.
Renewable energy.
What is the energy related to the vibration of the air?
Sound energy.
What energies are produced in a thunderstorm?
A. Light
B. Sound
C. Thermal
D. All the answers are correct.
All the answers are correct.
This is the energy of motion or the energy at work.
Kinetic energy.
What is heat?
It is the transfer of thermal energy.
This type of resournce will run out.
Non-renewable energy.
In photosynthesis, plants transform light energy into, what energy?
Chemical energy.
When I plug a radio into the wall and turn it on to listen to music, what energy am I changing into what energy?
Electrical into sound (kinetic).
What energy is produced in waves?
Sound energy.
It can be trnasferred at a distance or by contact.
Thermal energy.
What is the name of the device that transform mechanical energy into electrical?
A. Fan
B. Windshield
C. Waterfall
D. None of the above.
None of the above. It is called "windmill".
The Law of Conservation of Energy states that energy is never created or destroyed, it is only ________ from one form to another.
Transformed
This sector of the economy uses the most energy.
The industrial sector.
Kinetic energy is divided into...
Mechanical and sound energy.
This is the name given to harmful gasses that are created when we burn fossil fuels and are believed to contribute to climate change and global warming.
Greenhouse effect.
Do microwaves heat food?
No. The food heats itself.