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Science All Around You

Created by frozenblues

Fun Trivia : Quizzes : Miscellaneous Science
Science All Around You game quiz
"You don't need a laboratory or equipment to see some curious things going on all around you! Try this quiz on the science behind everyday things."

15 Points Per Correct Answer - No time limit  



1. Why is it easy to lose cell phone reception when traveling over a hill or down a valley, but the radio keeps playing without interruption?
    Cell phones use longer wavelengths than radio
    Cell phones are newer technology and the quality hasn't caught up
    Cell phones are smaller than radios
    Cell phones use shorter wavelengths than radio


2. Vacuum power. It is easy to suck water up a six-inch long straw... but what if it were longer? With very long, strong straws available to you, what is the highest you could suck up some water?
    About 34 feet
    About 7 feet
    Limited only by lung power
    About 17 feet


3. Two spoons, one made out of metal and one out of wood have sat side by side in your kitchen drawer for days. But if you pick up the metal one it feels cold compared to the wooden one. Why?
    The metal one stays cold
    Your skin is fooling you
    The metal one is heavier
    Weak electricity is flowing to your hand from metal one


4. Someone tells you that water swirls counter-clockwise going down the drain if you live in the northern hemisphere, and clockwise if you live in the southern hemisphere. Are they right?
    No, because it's the opposite - water always goes down clockwise in the north and counter-clockwise in the south
    Yes, water drains that way, but the north/south difference is due to cultural practices in plumbing setup
    Yes, it's an example of the coriolis force in action
    No, in real life the earth's spin won't affect the rotation of water going down a drain


5. You fill a glass half-full with ice cubes and then add water so that it is nearly full and the cubes are floating. Next you mark that water line with a pen and wait for the ice to melt. Where is the new water line compared to your mark?
    sitting above your line
    sitting at the line you marked
    sitting below your line
    it's random - could be above or below your line


6. If you snoop around the back, sides or bottom of your running refrigerator you will always find some hot area. Older models had a set of coils on the back that would get hot; current models have them on the underside or other hidden areas. Why do refrigerators have coils that get hot?
    Heat transfers from the food-compartment into the coils, making them hot
    The coils cool the motor that runs the refrigerator
    Refrigerators use a lot of electricity, which runs through the coils and makes them hot
    The coils are heated as part of the automatic-defrost cycle


7. Why are sunsets red?
    Red light is reflected by water vapor in the atmosphere
    Red light can curl around the earth as it turns
    Red light makes it through the atmosphere better than blue
    Red light isn't pulled down by gravity as much


8. How do rockets fly? Which analogy below is best to explain how a rocket works? [Don't try these at home though!]
    You set off a firecracker in a totally sealed container
    You sit on a chair, on an ice rink, and throw basketballs out in front of you
    You jump off a ladder onto a trampoline
    You grab a high voltage line with your bare hands


9. Visiting your aunt in the country, she asks you to take the clothes down off of her old-fashioned clothes line. Looking at this sagging piece of cord hanging between two poles, you recognize it's shape as a...
    parabola
    half-circle
    truncated ellipse
    hyperbolic cosine


10. Someone tells you that if you want ice cubes faster, use hot water from the tap rather than cold. Are they right? Does hot water freeze faster than cold water?
    Yes, hot water always freezes faster than cold water
    Hot water can freeze faster under certain conditions
    No, it's a silly myth - water has to cool to 0C to freeze, and cold water has a head start
    It depends on whether you live north or south of the equator


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Compiled May 19 13