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Chemistry
Forces
Density
Astronomy
Chemistry II
100
The pH of water
What is pH 7
100
the formula for velocity.
What is v=d/t (velocity=distance/time)
100
The density of water
What is 1g/mL
100
is when the moon is covered by the earth's shadow
What is eclipse of the moon (lunar eclipse)
100
The atomic number represents this
What is the number of protons in an atom of the element
200
This atom has given away or stolen an electron
What is an ion
200
Velocity involves these two things
What is speed and direction
200
Is the formula for density
What is D=m/v
200
Is what distances between galaxies are measured in.
What is light years
200
H2 is composed of 2 atoms from the same type of element that stay together in a pair. Another name for this is
What is a diatomic molecule
300
This is made of many groups of atoms repeated in a pattern
What is a polymer
300
The definition of inertia
What is an object at rest remains in rest. an object in motion remains in motion (unless acted upon by an unbalanced force).
300
Equals the weight of the fluid a boat displaces
What is buoyant force
300
happens when to the gravitational force between two planets when they move closer together
What is increases
300
This atom has a different number of neutrons than what is listed on the periodic table.
What is an isotope
400
In a chemical reaction, this changes
What is the arrangement of atoms
400
Newton's third lay (equal and opposite force)
What is when an object hits another object (wall), the wall (object 2) pushes back with equal and opposite force.
400
This is how you know whether an object will float or sink.
What is compare the density of the liquid to the density of the solid you want to float.
400
The planets that have longer years
What is the outer planets
400
In a chemical reaction, this stays the same
What is the number of atoms and the mass
500
The difference between a diatomic molecule and a compound
What is a compound has more than one kind of atom and can be formed by 2 or more atoms. (Diatomic is two atoms of the same element)
500
Is represented by a graph that has speed on the y axis and time on the x axis.
What is acceleration
500
Steps to calculate the density of an irregular solid.
What is Divide the mass of the object by the volume To find volume: 1. measure volume of water, 2. drop irregular object in water, 3. note the mL mark on graduated cylinder, 4. subtract # in step 1 (only water) from # in step 3 (water and object)
500
keeps the planets orbiting around the sun
What is gravity of the sun
500
If a solution has a pH of 2 it will turn litmus paper this color and that it is this type of solution
What is red and an acid