Download Ch. 32

Conceptual Physics Review Packet for Final Exam
Ch. 25 & 26
1) Define frequency, time period, amplitude and wavelength of a wave.
2) How is velocity related to wavelength and frequency.
3) Do waves transmit matter or energy.
4) What are longitudinal and transverse waves. Give examples.
5) What is constructive and destructive interference. How are the amplitudes of the
resultant wave determined in the two types of interference.
6) What is Doppler effect. How does frequency change when the source or observer
move (a) toward each other, (b) away from each other.
7) When is a sonic boom caused.
8) Can sound travel in vacuum. In which medium solid, liquid or gas, does sound travel
faster.
9) What is resonance.
10) Does the velocity of sound increase or decrease with temperature. Does sound travel
faster in gas molecules of greater mass or less mass.
Ch. 32
1) What are the two charge carriers in nature.
2) How does Coulomb’s law vary with distance.
3) What is conservation of charge.
4) What are charging by contact, induction and polarization.
5) How do charge carriers behave in insulators and conductors.
6) Which is safest location in lightning strike.
7) What is the electric field inside a charged hollow metal conductor.
Ch. 33
1) Define electric potential and electric potential energy. What are their units.
2) Work is done to bring an electron near a negatively charged sphere. If so what
happens to the electron’s potential energy.
3) What is a Van de Graff generator. How does it work.
Ch. 34
1) What does electric current consist of. In solids what are the charge carriers.
2) What are the units of potential, resistance and current.
3) How does resistance vary with temperature.
4) For current flowing in a wire, where do the electrons come from.
5) What is AC and DC current. Give examples.
6) What are the AC voltage and frequency in North America.
7) Express power in terms of voltage and current. What is the unit of power. How is power
related to energy and time.
Ch.35
1) What is Ohm’s Law. Give the equation.
2) How does current flow in AC circuit. Does current flow in a closed or open circuit.
3) What are series and parallel circuit.
4) Is current constant in a series circuit. How do you measure total resistance in a series
circuit. If you increase the number of devices in a series circuit do you increase or
decrease a. current, b. resistance.
5) Is voltage constant in a parallel circuit. How do you measure total resistance in a
parallel circuit. If you increase the number of devices in a parallel circuit do you
increase or decrease a. current, b. resistance.
6) Are electric circuits in homes in series or parallel.
7) What is a short circuit. When does it happen.
8) Is resistance greater for thin or thick filament.
Ch. 36
1) What is the source of magnetism.
2) Do electrical charges at rest produce magnetic field or do they need to move to do so.
3) How will a compass act in a magnetic field.
4) What are magnetic domains.
5) Does current carrying wire always have a magnetic field.
6) At what angle to the velocity of the charged particle is the force due to a magnetic
field the maximum.
7) Where do cosmic rays strike the most on Earth.
8) What is the Earth’s magnetic field due to?
Ch. 37
1) What is electromagnetic induction.
2) What is a transformer. What does it do.
3) Can DC current be stepped up or down. What about AC current.
4) What is a motor It converts __________ energy to ___________ energy.
5) What is a generator. It converts __________ energy to ___________ energy.
6) If a magnet is moved in and out of a coil, does it induce voltage. If you double the
number of coils what happens to the induced voltage.
7) If the number of coils is increased, is it easier or harder to push the magnet.
8) If you pass current thru a coiled wire, the magnetic field generated will be greater if
the coil enclosed _____________ .
9) What does a step up transformer increase ? Does a step up transformer increase power
or energy output also.
10) If the voltage is stepped up in the secondary coil, then what other change must happen
so that the law of energy conservation is not violated?
11) Why are high voltages transported by power plants through transmission wires?