This is the phase of matter when the atoms are fixed in place and can only vibrate very slightly.
What is a solid?
100
Who invented the model that was known as the "plum pudding model" which showed the atom as a sphere with some positively charged areas? (1890s)
J. J. Thomas
100
This is the positive part of an atom
What is a proton?
100
Substance A can easily be pounded out into a sheet. What can be said about substance A?
What is that substance A is malleable?
100
If 96.5 grams of gold has a volume of 5 cm cubed
, what is the density of gold? (Please include the correct unit)
What is that the destiny is = 19.3 grams per centimeter cubed. (g/cm^3).
200
Name one type of a physical change.
Various answers, but things including cutting something, folding something, freezing a cup of water, ect.
200
Rutherford's model was also known as the ___________ model because it showed electrons orbiting a positively charged nucleus.
What is the solar system model?
200
This is the neutral part of an atom?
What is a Neutron?
200
Substance B is often stretched out into wires and used in electronics. What can be said about substance B?
What is that Substance B is ductile?
200
If the density of a diamond is 3.5 grams /centimeters cubed
, what would be the mass of a diamond whose volume
is 0.5 centimeter cubed ?
What is M = 1.8 g
300
Name one type of chemical change.
Lots of answers acceptable, but things like burning, rust, dissolving in acid, ect.
300
This is the model that we deem to be the "correct model" today.
The electron Cloud model.
300
This is the negative part of an atom.
What is an electron?
300
Substance C can easily scratch substance D. What can be said about substance C?
What substance C has more hardness than substance D.
300
A box has a weight of 120 lbs and the bottom of the box is 12 inches squared.
What is the pressure the box exerts on the
floor?
What is 10 pascals?
400
Sublimation is the transfer of a substance from a _____ to a ______.
solid to a gas
400
This ancient civilization was the first one to come up with the concept of an atom.
What is the Greeks?
400
An unidentified, neutral atom has 78 protons. How many electrons does it have?
What is 78?
400
I throw substance F onto the floor and it breaks into many pieces. What can be said about substance F?
What is that substance F is brittle?
400
What is the weight of an object that has a base which is 3 square inches and which exerts a pressure of 12
pounds per square inch?
What is 36 Newtons?
500
From your review and assessment at the end of the chapter:
Fog is which state of matter?
What is a liquid?
500
This scientist came up with a model where the atom was represented as only a sphere.
What is Dalton?
500
The atomic number of carbon is 6. Is the atomic mass greater, equal to, or less than 6?
What is greater than?
500
What is the difference between strength and tensile strength?
Strength = The amount of force necessary for a material to deform.
Tensile Strength = the amount something that can be pulled on or stretched before it looses it's shape or deforms.
500
A rectangular prism has dimensions of 3 cm by 4 cm by 3 cm. The mass of this prism is 100 grams. Determine the density.
Then, state if this cube would float or sink in mercury which has a density of approximately 13 grams per centimeter cubed.
What is that the density is about 2.7 grams per centimeter cubed.
It would float because the density of the cube is less than the density of mercury.