AP physics objectives

August

Mechanics Review

Kinematics

1) State the difference between vectors and scalars. Give examples of each.

2) Calculate average speeds and velocities.

3) Calculate average acceleration.

4) Draw graphs of acceleration, velocity and distance verses time. Relate these to derivitives and integrals.

5) Solve one dimentional kinetic problems.

Projectile Motion

6) State the relationship between the x and y dimentions.

7) State the acceleration in the x and y dimentions.

8) State how the initial velocities are found in the x and y dimentions.

9) Solve projectile motion problems.

Time to be determined

Wave Properties

1) State the difference between transverse and longitudinal waves, give examples.

2) Identify wave length from amplitude vs distance plots.

3) Identify period and frequency from amplitude vs time plots.

4) Solve problems using the mathematical relationship between velocity, wave length and frequency.

Standing Wave Properties

5) Draw sketches of harmonics or overtones for :

• Rods
• Air columns in open, closed or open/closed end pipes.
• Strings

6) Using standing waves, calculate sound velocity, frequency, and/or wave length.

7) Explain resonance and what causes it.

8) How can we say that a resonating system acts as a (frequency) filter?

9) Give an example of how resonance is used in electrical circuits.

Homework 15.52, 15.53

Sound Intensity/Loudness

10) State how sound intensity (power/unit area) is analogous to an electric field.

• Inverse square law
• Power vs force

11) State how Gauss's law for electricity is analogous to sound.

12) State the dB rating obtained when 2 sounds of equal dB are added.

13) Calculate beat frequency.

Homework: 15.63, 15.65, Write answers to objectives 10 and 11. Use sketches in the answers.

Doppler Effect/Shock Waves

14) Calculate frequency shifts using the Doppler effect.

15) State what causes sonic booms.

Homework: 15.71, 15.75

Chapt 17: Electric Potential and Capacitance

Electric Potential

1) State whether electric potential is a vector or scalar and give its units.

2) Calculate the electric potential vs distance from a point charge.

3) Calculate the work done and the increase in kinetic energy by moving a charge in an electric field.

4) Calculate the electric potential from more than one point charges.

5) State the meaning of an individual value of electric potential.

6) Define electron volt.

Homework: 17.1, 17.3, 17.5, 17.9, 17.17

Chapt 17: Electric Potential and Capacitance

Equipotential Surfaces

7) Describe the relationship between electric field and equal potential surfaces or lines.

8) Describe the electric field at the surface of a conductor.

9) Describe the electric field and electric potential inside a solid conductor.

10) Qualitatively describe the electric field and potential inside a charged solid nonconductive object and draw an analogy to a tunnel through the Earth.

Homework 17.22, 17.23, 17.25

Capacitors

10) Define capacitance mathematically.

11) Calculate the capacitance of a flat plate capacitor given the area and separation of the plates.

12) Solve capacitor problems with dielectrics.

13) Solve capacitor problems with changes in their configuration.

Homework 17.31, 17.35, 17.36

14) Calculate the force on the plates of a capacitor.

15) Calculate the energy stored in a capacitor.

16) Calculate the effects of changing plate spacing and dielectric material on energy storage in a capacitor.

17) Determine the capacitance of cylindrical capacitors.

18) Solve capacitor/ spring problems.

Homework 17.47, 17.49, 17.51, 17.53

Magnetic Field (Chapt 29 Serway)

1) Draw the magnetic field lines on a bar magnet.

2) Explain what the magnetic field lines indicate.

3) State an important difference between magnetic field lines and electric field lines.

4) Calculate the magnitude of the force on a moving charge given its velocity and the strength of the magnetic field.

5) Using the right hand thumb rule state the direction of the force.

6) Give the relationship of teslas to gausses.

7) Calculate the force on a current carrying wire in a B-field.

8) Explain why the net force on a current carrying loop in a B-field is zero.

9) Calculate the torque and direction of rotation on a current carrying loop of wire in a B-field.

10) Determine the motion of a charged particle traveling at constant velocity in a magnetic field. State the work done by the B-field.

11) Solve problems with charged particles moving in both magnetic and electric fields.

Homework 5, 6, 13, 15

12) Design velocity selectors for charged particles.

13) Describe the hall effect.

14) Describe the effects of moving a conductor in a magnetic field.

Homework 17, 21, 25, 29

Sources of Magnetic Fields (Chapt 30 Serway)

1) Describe the magnetic field around a long thin current carrying wire.

2) Calculate the magnetic field around a long thin current carrying wire.

3) Describe and calculate the forces on two parallel long thin current carrying wires.

4) Calculate the magnetic field along an axial line through the center of a loop of current carrying wire.

5) Explain the Biot Savot law.

6) Explain Ampere's law.

7) Apply all three right hand thumb rules.

Homework 7, 29, Lab Report 2/9/99

1) State and apply Faraday's Law of Induction.

2) Solve motional EMF problems.

• Rotating bar
• Sliding bar
• Rotating loop
• Sliding loop

3) Use Lenz's Law to calculate forces in motional EMF problems.

Maxwell Equations

4) Describe the electric field from an EMF induced by by a magnetic field and state its general form.

5) Calculate the electric field for a circular loop.

6) Be as one with the 4 Maxwell equations.

Homework 51

RC, LR and LC Circuits

1) For a charging RC circuit (p.808) Calculate the following:

• charge vs time
• current vs time
• time constant

2) For a discharging RC circuit (p.808) Calculate the following:

• current vs time
• voltage vs time
• time constant

3) Solve RC circuit problems.

Homework 43, 44, 45

4) State how a capacitor behaves at time = 0 and infinity.

5) State how an inductor behaves at time = 0 and infinity.

6) For an LR circuit (p.944) Calculate the following:

• current vs time
• voltage vs time
• time constant

Homework 17, 19, 21

7) Write an energy balance equation for an LC circuit.

8) Calculate the frequency of an LC circuit.

9) Draw an analogy between an LC circuit and a spring and mass system.

10) Draw an analogy between an RLC circuit and a spring and mass system.

11) Explain the difference between dampening and damping.