Download Chapter 36 Summary – Magnetism

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Physics Semester 2 Overview of Ideas to Know
The following answers can be found using semester 2 resources including your portfolio, notes, jigsaws, thinking maps,
practice worksheets, bellworks, homeworks, SIPI, blue book, and white book (chapters 25, 27, 29, 31, 32, 33, 34, 35, 36, 37, 39, 40).
1) Understand the (2) types, characteristics (wavelength,
amplitude, frequency, period, crest, trough, compression,
rarefaction), interactions, uses, examples, interference, and
sources of waves.
2) Understand the relationship, similarities, differences,
formulas, and uses of frequency and period.
3) Understand standing waves (parts, causes, sources, details).
4) Understand the Doppler Effect: what it is, what it affects,
how we perceive it, how we use it.
5) Understand what waves do and don’t transfer and the
relationship between energy and amplitude.
6) Understand bow wave, shock wave, sonic boom.
7) Understand the relationship between (frequency and
wavelength), (energy and amplitude), (frequency and
energy).
8) Understand the formula, units, and application of the wave
speed formula.
9) For electromagnetic waves, understand the spectrum (and
energy, wavelength, frequency in the spectrum), speed, type,
uses, perception, source, and characteristics.
10) Understand similarities and differences between
electromagnetic waves and sound waves.
11) Understand transparent, translucent, and opaque and
examples of wave-material pairs of each.
12) Understand the Law of Reflection and how it applies to
waves.
13) Know what ray diagrams are, how we make them, how we
use them, what they tell us.
14) Understand reflection, refraction, and diffraction: their
definitions, details, situations, examples, and what they mean
for waves.
15) For the parts of an atom, know the details, location, and
charges.
16) For charges, understand Coulomb’s Law (size of the charges,
distance between, and size of the electric force), how charges
interact, and how they distribute on an object.
17) Know the 3 ways to charge an object, their definition, and
examples.
18) Understand the ideas of electric potential and electric
potential energy.
19) Understand the definition, relationship, symbol, units, and
formulas for current, resistance, electric potential, and power.
20) Understand the charge in an appliance before and after
current is flowing.
21) Understand our standards for power supplied by the electric
company.
22) Understand what electricity is, what causes it to flow, and
how we transfer its energy.
23) Understand how we measure electrical power, how we
measure electrical energy, and how we charge for electricity.
24) Understand the concepts of overloading a circuit, circuit
breakers, fuses, a short circuit, and switches.
25) For series and parallel circuits, understand their definitions,
similarities, differences, advantages, disadvantages, uses,
examples, current, voltage, resistance, and how these values
change if you add/remove resistors.
26) Understand how to calculate current, resistance, and voltage
for each piece of a circuit, and totals of each.
27) Understand the relationship between electricity (current
carrying wire) and magnetism (magnetic fields).
28) For an electromagnet, understand the construction, creation,
examples, uses, and relationship between a current carrying
wire and magnetic fields.
29) For electromagnetic induction, understand the idea,
definition, examples, and applications.
30) For motors and generators, understand their definition, basic
parts, energy transfer, examples, and uses.
31) Understand what a transformer is, what it does, how it works,
and how we use it.
32) For fission and fusion, understand the definition, process,
uses, and examples.
33) Be familiar with units, symbols, and formulas of
measurements we’ve used.
34) Have a handwritten, up-to-date SIPI, know what is in it,
where it is, and have practice using it.
Practice Problems
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Calculate the frequency for a wave with a period of 5s.
Calculate the frequency and period of a basketball player that makes 25 shots in 60 seconds.
A wave travels 10 m in 2 s. What is the wave velocity?
Sound waves in air travel at about 330 m/s. Calculate the frequency of a 2.5 m sound wave. Calculate the period.
What is the electric force between charges of 6.1 C and 5.2 C that are 0.2 m apart?
If the force between 2 charges is 100 N, what would the new force be if both charges doubled? The distance doubled? A charge
was half? A charge tripled and the distance tripled?
What is the resistance in a circuit with a 12 v battery and a current of 3 amps?
A 10 Ω resistor is connected to a 12 v battery. Calculate the current.
A 20 Ω resistor has a 4 A current through it. What is the voltage across the resistor?
How much current flows through a 24 V battery powering a drill that has 7Ω of resistance? How much power does it ues?
An electric blanket is rated at 240W. How much current is used? How much resistance does it have?
What are the individual and total values for V, I, and R for a 4Ω, 5Ω, and 6Ω resistor wired in series? Parallel? (tables)
What is the total resistance of a 10 Ω and 30 Ω resistor wired in series? Wired in parallel?
The input side of a transformer has 8000 volts and 6400 winds. The output side has 120 volts and how many winds?
A transformer outputs 120,000 volts with 32,400 winds. If the input side has 4320 winds, how many volts go in?