Energy & Motion
This formula is used to calculate what form of energy?
KE = 1/2*m*v2
Kinetic Energy
What are the three states of matter?
Solid, liquid, and gas
A _______________ is a push or a pull.
Force
What is the SI unit used to measure energy?
Joule (J)
The substances you start with in a chemical reaction are called...
Reactants
The kinetic energy of an object depends primarily on what two factors?
Mass and speed
In which state of matter are the particles packed tightly together in a fixed arrangement?
Solid
This law states that an object at rest stays at rest, and an object in motion remains in motion unless acted upon by an unbalanced force.
Newton's First Law of Motion
Name the three ways that thermal energy can transfer between objects.
Convection, Conduction, Radiation
The substances you end with in a chemical reaction are called...
Products
Mass and height
What is the basic unit of matter?
An atom
When the net force on an object is zero, the forces acting on this object are considered ________________.
Balanced
What is a measure of how well a material transfer thermal energy
Thermal conductivity
This law states that matter cannot be created nor destroyed during a chemical reaction
Law of Conservation of Mass
If the mass of a an object is doubled, what happens to its gravitational potential energy?
These two materials are both made of carbon, but have very different properties - in one material, the carbon atoms are locked in place, making it very rigid. In the other, the atoms are in sheets that can slide, making it very brittle.
Diamond and graphite
What is the equation for Newton's Second Law of Motion?
Force = mass x acceleration
Which material would be a better thermal conductor - copper or wood?
Copper
Describe two indicators that a chemical change has occurred
Change in color; formation of a gas; change in temperature; production of an odor; production of light
If you double the speed of an object, by how much does its kinetic energy increase?
By a factor of 4 (quadrupled)
What is the measurement that is based on the average kinetic energy of all the particles in a substance?
Temperature
Which law states that for every action force, there is an equal and opposite reaction force?
Newton's Third Law of Motion
A thermal ___________________ is a substance that slows down the transfer of thermal energy, or does not conduct thermal energy very well.
Insulator
Methane + Oxygen -----> Carbon Dioxide + Water
What are the products in this reaction?
Carbon Dioxide & Water