PHYS 1 quiz 3
the distance through which the force acts
A hydraulic press multiplies a force by 100. This multiplication is done at the expense of
single breath
Assuming all the atoms exhaled by Julius Caesar in his last dying breath are still in the atmosphere, then we probably breathe one of those atoms with each
1.25 kg
At normal atmospheric pressure and temperature, 1 cubic meter of air has a mass of about
3
What is the total number of individual atoms in a water molecule?
pushed to the wall by the atmosphere
When a suction cup sticks to a wall it is
by a force equal to the weight of liquid displaced
When an object is partly or wholly immersed in a liquid, it is buoyed up
toward each other
When you blow air between a pair of closely-spaced Ping-Pong balls suspended by strings, the balls will swing
remains the same
a block of wood with a piece of iron tied to the top of it floats in a bucket of water. if the wood and iron are turned over so that the iron is submerged beneath the wood, the water level at the side of the bucket
water level drops
a large cube of ice containing an iron railroad spike floats in a rim full container of water. when the ice melts
10000kg
a metal block has a density of 5000kg per cubic meter and a volume of 2 cubic meters. what is the mass?
hold air in her lungs
a scuba diver losing her air supply while far beneath the water surface is advised when ascending to
no change in water levels
an ice cube with large air bubbles in it floats in a brim full container of water. when the ice cube melts
less
compared to the volume of a kilogram of feathers, the volume of a kilogram of lead is
less
eight little spheres of mercury form a single sphere. compared to combined surface area of 8 little spheres, the surface area of the big sphere is
astronaut and equal mass of planet would annihilate
if an astronaut landed on a planet conposed of antimatter, there will be an explosion and the
mittens
in cold weather your hands will be warmer if you wear
atmospheric pressure
in drinking soda or water through a straw, we make use of
electrons
the chemical properties of matter are due mostly to their
the sun
the energy responsible for molecular motion in earths atmosphere is
more time per pound is needed
the larger turkey cooked in a conventional oven at a given temp the
neon
two protons to an oxygen produces
plasma phase
when a common fluorescent lamp is lit, the mercury vapor inside is in
both
which has a greater density?
molecules are the smallest subdivisions of matter
which is true
feet
while standing your blood pressure is normally greatest in your
