Chemical reactions are when atoms get rearranged into a new product
100
Name 4 forces
Tension, applied, friction, gravity, norm, spring, air resistance
100
What does Newton's laws describe
Motion of an object
200
Explain 2 things about the proton, neutron, and electon
Proton-positive, in nucleus, determines element
Neutron-neutral, in nucleus, determines mass
Electron-negative,surrounds nucleus, determines how element reacts
200
What is an ionic compound
metal and nonmetal bonded together through taking and giving electrons causing a negative and positively charged ion, opposite attract
200
Name 3 of the 5 chemical reactions
Synthesis, decomposition, double replacement, single replacement, combustion
200
What is the difference between mass and weight
mass is how many atoms the object is made of, where weight is how much gravity is acting upon an object
200
What is inertia
An objects tendency not to accelerate
300
What is an isotop?
An atom with a different mass than the atomic mass of the element. Example: Carbon has an atomic mass of 12, but some have a mass of 14 so they would be considered isotops
300
What is a covalent bond
Two non metals bonded together by sharing electrons to both have 8 electrons on the outside
300
Explain the difference between exothermic and endothermic reactions
Exothermic is when heat (energy) is released out of the reaction resulting in fire, heat, light
Endothermic is when heat is put into the reaction, a feeling of cold
300
Explain net force
All the forces added up to figure out how much forces are affecting the object. Need to make sure you cancel out counteracting forces
300
Explain how mass affects inertia
The more mass, the more likelihood it will not change its velocity because it would take a greater force to cause an acceleration
400
Name 3 of the four modern atomic theories
Law of conservation of matter
Law of definite proportions
All things are made of atoms
Atoms of different elements differ in properties
400
Explain how electrons are arranged around the nucleus, and why it is important to know
They are arranged in shells surrounding the nucleus, the outside shell is called the valance shell and it determines how reactive the atom will be and how it will bond with other atoms. Need 8 to be stable
400
Explain how chemical reactions happen in terms of atoms and bonds
The bonds get broken between the atoms and that results in single atoms floating around, then they recombine to create stronger bonds
400
A golf ball is flying through the air, explain the forces acting upon it and what direction the net force is acting
Air resistance, gravity, the net force is going down and backwards
400
Explain newtons 2nd law
Newtons 2nd law states how acceleration is affected by mass and force. Force and acceleration are proportional, when one changes, the other changes in the same manner, acceleration and mass are inversely proportional, when one changes, the other changes in the opposite direction
500
What was the name of the girl I went to prom with
Courtney
500
What is my favorite type of pizza
Caseys taco
500
What did I do last 4th of July at my friends house