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Temperature & heat

1.)    In a meeting room, there are chairs, a table and people. Which of these things has temperature (a) lower than, (b) Greater than, or (c) equal to the temperature of the air?
10.) If you drop a Hot Rock in a pail of water, the temperature of the rock and water will change until both equal. The rock will cool and the water will become warm. Doe this Hold True if the hot rock where dipped in the Atlantic ocean.
23.) In times past, on a cold winter night, it was common to Bring a Hot Object to bed with you. Which would keep you warmer through the cold nigh-a 10kg iron brick or a 10kg jug of hot water at the same temperature Explain?
33.) After you have Driven a car for some Distance , why does the air pressure in the tires Increase?
56.) How does the Combined Volume of the Billions and Billions of hexagonal OPEN SPACES IN THE STRUCTURES of ice crystals in a piece of ice compare with the portion of ice that Floats above the water line?

Heat Transfer
1.)    On a cold day, why does metal Doorknob feel colder than a wooden door
19)why is it incorrect to say that , when a hot object warms a Cold one, the Increase  in temperature of the cold one is equal to Decrease in temperature of the hot one? When is this statement correct?
33.)air density is Normally less above any point in air than below providing a migration window in air. How does this affect the movement of faster- moving molecules in air?
46.) When there is a Morning frost on the grass in an open park. Why is frost unlikely to be found on the ground directly beneath park benches?
Change of  Phase
1.    Alcohol evaporates more quickly than water at the same temperature. Which produces more cooling- alcohol or the same amount of water on you skin
12.)porous canvas bags are filled  with water are used by travelers in hot weather, when the bags are slung on the outside of a fast moving car , the water inside is cooled considerably  explain?
24.)when can you withdraw heat from something without lowering its Temperature?
42.)why is Cold Ice Sticky?
57.)why will spraying fruit trees with water before frost help protect the fruit from freezing?
Thermodynamics
1.)    A friend said the temperature inside a Particular oven is 500 and the temperature inside a Particular star is 50,000. You’re unsure whether your friend meant Celsius degrees or Kelvin. How much of A Difference does it make in each case?
10.) When you blow up a Balloon, do you Slight warm up the balloon? When air is allowed to rush out of it how if all does the temperature of that expanding air Change?
26.) Could you warm up a Kitchen by leaving the Door of a Hot Oven Open? Explain?
35.) Molecules in the Combustion chamber of a rocker engine are high state of Random motion. When the molecules are expelled through a nozzle in a more ordered state will their temperature be more less, or the same as their initial temperature in the chamber before being exhausted?
Vibrations and Waves
1.)    Dies the period of pendulum depend on the mass of heavy bob/ on the length of string?
11.) in the stands of the Race track, you notice smoke from the starters gun and sends it electrically to Speakers at every runners starting block. Why/
21.) Why does sound travel slower in the Cold air?
31.) if a Single Disturbance at an Unknown  distance emits both transverse and longitudinal waves that travel with  distinctly different speeds in the medium such as in the ground during an earthquake, how can the distance to the disturbance be determined?
39.)a Pair Of Loud Speakers on two sides of a stage are emitting identical pure tones ( tones of a fixed frequency and fixed wavelength in air). When you stand in the center aisle, equally distant from the two speakers, you hear the sound loud and clear. Why does the intensity of the sound diminish considerably when you step to one side?
Sound
2.)    If the moon blew up, why would we not hear it?
7.) What does it mean to say that the radio station is at 101.1 on your fm dial?
27.) If the distance from Bugle is tripled, by what factor does the Sound intensity decrease, Assume that no Reflections affect the sound.
33.) Why is ita sensible procedure for solders to break step when marching over a Bridge?
49.) A Piano tuner using a 264-hz tuning fork hears4 beats per second at 102khz, but if you walk in to a room in which two sources are emitting sound waves, one at 100khz the other at 102 khz, you’ll hear sound explain
Musical Sounds
1.) As the pitch of Sound increases, what Happens to the frequency?
11.) The strings on a Harp are of different notes produced on a guitar, where all strings have the same length?
18.) Would a plucked guitar string vibrate for a longer time or a  shorter time if the instruments had no  sounding board? Why?
31.) Why does your Voice Sound Fuller in the shower?

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