Atomic Nature
Solids
Liquids
Gases
Random
100
All living creatures are made of
Carbon
100
All densities (except for water) are given at ____ degrees C
ZERO Degrees
100
Units: Pascal = _______ / meter2
Pascal = Newton / meter2
100
1 ATM =_________ Pa
1 ATM =101,300 Pa
100
____________ tells you the number of protons in an atom
Atomic Number
200
____________ makes up 90% of the universe
Hydrogen
200
Give one reason why wings have lift
Several possible answers: Difference in pressure - angle of attack (Newton's 3rd Law) - Molecules in flowing air over a wingfoil and boundary effect
200
Units: Water density is ____________ .
1 gram / cm3
200
A _____cm column of mercury weighs the same as the air that would fill a _____km column of the the same diameter in a barometer.
A 76 cm column of mercury weighs the same as the air that would fill a 30km column of the the same diameter
200
A 8.6 kg piece of metal displaces 1 liter of water when submerged. Calculate its density.
Density = mass/volume Density = (8.6kg)/(0.0001m3) Density = 8600 kg/m3
300
________ is the simplest example of an organic compound
Methane
300
The density of Gold is 19.3g/cm3 What is the specific gravity?
Specific Gravity = density Gold/density water Specific Gravity = 19.3g/cm3 / 1.0g/cm3
300
1 cubic meter= __________ cubic cm.
1 cubic m= 1,000,000 cubic cm (because 100x100x100)
300
Rather than suction – _____________ provides the force to push a cup against the window – partial vacuum
Atmosphere
300
Name the law/principle: This explains why a hydraulic jack works.
Pascal’s Principle
400
Give the number - NOT the definition What is Avogadro's number?
6.0221415×1023
400
Which has greater density – Uranium or Lead? How do you know?
Uranium at 19.0g/cm3 –Lead is 11.3g/cm3 Greater density further down the chart
400
The volume of a submerged object is equal to the _______ of liquid displaced.
Volume
400
The balloon rises because - The force of air pushing on the _________ is GREATER
bottom
400
______________ tells the number of protons and neutrons normally found in a nucleus
Mass Number
500
What is definition of Avogadro's Number?
Its the number of molecules in 12 grams of C12
500
A 2 kg mass stretches a spring 3cm. How far does the spring stretch when 6kg stretches it?
2kg/3cm = 6kg/9cm
500
The weight of a floating object is equal to the _______ of liquid displaced.
Weight
500
What is the mass of a cubic meter of air at sea level? Density of air is 1.21kg/m3
1.21kg
500
Consider a model of NaCl : Na+ is a _______ Cl- is an _______
Na+ is a cation (1 fewer electrons than protons) Cl- is an anion (1 more electrons than protons)
M
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