1/12/26, 5:58 AM MSU CEM 141 FINAL STUDY GUIDE
MSU CEM 141 FINAL STUDY GUIDE EXAM With
Complete 300 + Questions And Correct Detailed
Answers (Verified Answers) |Already Graded A+
Michigan State University
Scientific Questions can be answered by...
-Doing experiments
-Making observations
-Taking measurements
Atomic number=
Number of protons
Dalton's Atomic Theory
1) Elements are composed of atoms.
2) Atoms of same element are identical, and have the same mass and properties.
3) Atoms of a given element are different from atoms of other elements.
4) Compounds are formed by combinations of atoms of two or more elements.
5) Chemical reactions are due to the rearrangements of atoms, atoms (matter)
are neither created nor destroyed during a reaction.
/ 1/25
,1/12/26, 5:58 AM MSU CEM 141 FINAL STUDY GUIDE
Cathode Ray Tube
Glass tube consisting of 2 electrodes under very low pressure. When a high
voltage is applied, cathode emits "particles" that move toward anode.
Thomson's Experiments showed
1. Particles emerge from one disc and move to the other
2. Particles could be deflected by electrical fields or magnetic fields
3. Particles carried the electrical charge
Number of electrons =
Number of protons
4 Known fundamental forces are
Gravity, Electromagnetic, Strong Nuclear Force, and Weak Nuclear Force.
The electromagnetic force is mediated by the
Electric and Magnetic Fields
Electromagnetic force >
Gravity
/ 2/25
, 1/12/26, 5:58 AM MSU CEM 141 FINAL STUDY GUIDE
Coulomb's law represents
The force between charges
What is Energy?
We don't know but changes in energy are caused by changes in forces.
System
Part of the universe you are looking at
Surroundings
Everything else in the universe
Kinetic Energy is energy associated with
Motion.
Potential Energy
1. Energy associated with the position of system of objects in a field.
2. Must be 2 or more objects
3. Must be a field.
/ 3/25
MSU CEM 141 FINAL STUDY GUIDE EXAM With
Complete 300 + Questions And Correct Detailed
Answers (Verified Answers) |Already Graded A+
Michigan State University
Scientific Questions can be answered by...
-Doing experiments
-Making observations
-Taking measurements
Atomic number=
Number of protons
Dalton's Atomic Theory
1) Elements are composed of atoms.
2) Atoms of same element are identical, and have the same mass and properties.
3) Atoms of a given element are different from atoms of other elements.
4) Compounds are formed by combinations of atoms of two or more elements.
5) Chemical reactions are due to the rearrangements of atoms, atoms (matter)
are neither created nor destroyed during a reaction.
/ 1/25
,1/12/26, 5:58 AM MSU CEM 141 FINAL STUDY GUIDE
Cathode Ray Tube
Glass tube consisting of 2 electrodes under very low pressure. When a high
voltage is applied, cathode emits "particles" that move toward anode.
Thomson's Experiments showed
1. Particles emerge from one disc and move to the other
2. Particles could be deflected by electrical fields or magnetic fields
3. Particles carried the electrical charge
Number of electrons =
Number of protons
4 Known fundamental forces are
Gravity, Electromagnetic, Strong Nuclear Force, and Weak Nuclear Force.
The electromagnetic force is mediated by the
Electric and Magnetic Fields
Electromagnetic force >
Gravity
/ 2/25
, 1/12/26, 5:58 AM MSU CEM 141 FINAL STUDY GUIDE
Coulomb's law represents
The force between charges
What is Energy?
We don't know but changes in energy are caused by changes in forces.
System
Part of the universe you are looking at
Surroundings
Everything else in the universe
Kinetic Energy is energy associated with
Motion.
Potential Energy
1. Energy associated with the position of system of objects in a field.
2. Must be 2 or more objects
3. Must be a field.
/ 3/25
