Page 219 - The Ontario Curriculum, Grades 11 and 12: Science, 2008 (revised)

d2.5 conduct an inquiry to determine the direction of the magnetic field of a straight current-carrying conductor or solenoid [PR, AI]
d2.6 conduct an inquiry to determine the direction of the forces on a straight current-carrying con- ductor that is placed in a uniform magnetic field [PR, AI]
d2.7 construct, or deconstruct and explain the components of, a basic electric device (e.g., a DC motor, a water-level detector) [PR, C]
D. Understanding Basic Concepts
By the end of this course, students will:
d3.1 compare and contrast the behaviour and func- tions of series, parallel, and mixed DC circuits
d3.2 state Kirchhoff’s laws and Ohm’s law, and use them to explain, in quantitative terms, direct current, potential difference, and resistance in mixed circuit diagrams
d3.3 identify and explain safety precautions relat- ed to electrical circuits in the school, home, and workplace (e.g., the importance of turning off the current before performing electrical repairs;
the reasons for grounding circuits; how to safely replace spent fuses; the use of double insulated tools and appliance circuit breakers)
d3.4 describe, with the aid of an illustration, the magnetic field produced by permanent mag- nets (bar and U-shaped) and electromagnets (straight conductor and solenoid)
d3.5 explain the law of magnetic poles
d3.6 distinguish between conventional current and electron flow
d3.7 state Oersted’s principle, and apply the right-hand rule to explain the direction of the magnetic field produced when electric current flows through a long, straight conductor and through a solenoid
d3.8 state the motor principle, and use the right- hand rule to explain the direction of the force experienced by a conductor
d3.9 explain, using diagrams, the components and operation of a DC electric motor
d3.10 compare and contrast direct current and alternating current (AC) in qualitative terms (e.g., the difference between DC and AC motors), and describe situations in which each is used
ELECTRICITy AND MAGNETISM
21
Physics
SPH4C