Recognize and differentiate that matter is made of particles in constant motion (solid, liquid, gas, and plasma)
Explain why adding or removing energy causes a phase change and
give example (4.01)
Define and give examples of elements and compounds
Compare and contrast a pure substance and mixture (homogeneous
and heterogeneous). (4.02)
Identify and give examples of physical and chemical changes. (4.03)
Describe contributions of scientists to the modern atomic theory from
Democritus through Chadwick (4.04)
Describe the structure of atoms (electrons, neutrons, and protons)
Define isotope.
Compare atomic number and mass number. Be able to solve for
mass number, neutrons, and protons.
Explain how the periodic table is organized.
.
6

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the conductor. a conductor is placed in an external electrostatic field. the external field is uniform before the conductor is placed within it. the conductor is completely isolated from any source of current or charge. part a: which of the following describes the electric field inside this conductor? it is in the same direction as the original external field.it is in the opposite direction from that of the original external field.it has a direction determined entirely by the charge on its surface.it is always zero. part b: the charge density inside the conductor is: 0non-zero; but uniformnon-zero; non-uniforminfinite part c: assume that at some point just outside the surface of the conductor, the electric field has magnitude e and is directed toward the surface of the conductor. what is the charge density η on the surface of the conductor at that point? express your answer in terms of e and ϵ0