Do You Know a Bit of Physics?

 Physics is all around us. We are surrounded by its expression - the light of the sun, the wind in our backs and everything we do or think follows the laws of physics. How many of these basic rules of existence do you know? Take our test!
 
 
In math, "pi" is equal to?
3.14
3.41
4.31
4.13
 
 
Which of these sound-playing devices was invented first?
Gramophone
Record Player
Turntable
 
 
What unit of measurement is one-thousandth of a gram?
Miligram
Nanogram
Microgram
Decigram
 
 
What liquid is used as a standard when measuring density?
Water
Soy Oil
Pure Alcohol
Human Blood
 
 
If my weight is 300 pounds and I walk on the moon, what will be my weight there?
The moon's gravity is 1/6 of Earth's hence our weight would be 1/6 of our weight on Earth. However our mass remains the same.
50 pounds
150 pounds
Zero
300 pounds
 
 
Which of these has a frequency higher than that of visible light?
The frequency of visible light is between 4 * 10^14 hertz to 7 * 10^14 hertz. The frequency of ultraviolet light is in between 8 * 10^14 hertz to 3 * 10^16 hertz frequency range. Ultraviolet light is used for sterilization of medical equipment and killing bacteria in water.
Ultraviolet
Microwave
Radiowave
Infrared
 
 
True or False: Water will boil faster in a mountainous area than at a sea level area
At sea level water boils at 100 degrees Celsius or 212 degrees Fahrenheit. As the height increases, the boiling point of water decreases due to the decrease in atmospheric pressure. So water will boil faster in mountainous areas.
True
False
 
 
Graphite is a crystalline form of which element?
Graphite is also found in batteries and brake linings among many other uses.
Carbon
Lead
Coal
Bronze
 
 
What is the velocity of sound in vacuum?
None, there is no sound in a vacuum
100 km/s
120 km/s
210 km/s
 
 
Humans are also exposed to radiation from man-made sources. Which of the following man-made sources accounts for the largest percentage of exposure to general populations?
Building and road construction materials
Cleaning products
Luminous cellphones
Medical procedures
 
 
What do you call a substance containing only one kind of atom?
An Element
A Gas
A Proton
A Noble Solid
 
 
The laws of physics tell us that energy is...
The law of conservation of energy states that energy goes from one form to another and never actually goes away.
Conserved
Concerned
Constant
Contained
 
 
Which of these elementary particles is known as "massless"?
Photon
Electron
Proton
Neutrino
 
Try Again?
You still have quite a bit to learn about the way our universe works. But not to worry, there is so much to learn no one knows it all! The most important thing is to keep being curious and be willing to learn more.
 
Nicely Done!
You didn't answer all questions correctly but you can certainly hold your own when it comes to discussing this universe of ours. You have some more to learn, but don't we all? You certainly have a scientific curiosity.
 
Superb Knowledge!
You know so much about physics, you could easily teach it! In fact, we hope you are. You stand on the knowledge of giants. Like them, you like to know and understand the world around you. This is a great attitude to life!
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