Cover, Vocabulary

Cover, Vocabulary

Block 6 Circular Motion & Magnetic Phenomena
Packet Work List
  1. Cover, Vocabulary
  2. WCW
  3. Notes Circular Motion
  4. Practice A Circular Motion #1-4
  5. Practice B Circular Motion #1-4
  6. Circular Motion Section Review #1-7
  7. Magnets and Magnetic Fields Section Review #1-5
  8. Magnetism From Electricity #1-4
  9. Centripetal Force Worksheet
  10. Magnets and Magnetic Field Worksheet
  11. Magnetism From Electricity Worksheet
Objective
  • Understand how a force can create circular motion
  • Explain how a moving electric charge can be a source of
magnetic fields
  • Describe the direction of a magnetic field in a wire or coil
  • Solve problems with Coulombs law and the universal gravitation Forces
California State Science Standards
Physics 1g- Students know circular motion requires the application
of a constant force directed toward the center of the circle.
Physics 5f- Students know magnetic materials and electric currents
(moving electric charges) are sources of magnetic fields and are
subject to forces arising from magnetic fields of other sources.
Physics 5g- Students know how to determine the direction of a
magnetic field produced by a current flowing in a straight wire
or in a coil.
Physics 1m*- Students know how to solve problems involving the
forces between two electric charges at a distance (Coulomb’s Law)
or the forces between two masses at a distance (Universal Gravitation).
College/Career Readiness State Standard
Knowledge of Language
#3 Apply knowledge of language to understand how language functions
in different contexts, to make effective choices for meaning or style, and
to comprehend more fully when reading or listening.
a) Vary syntax for effect, consulting references for guidance
as needed; apply an understanding of syntax to the study of complex
texts when reading.
Focus Questions
  1. Solve problems involving centripetal acceleration and/or centripetal force
  2. Explain how the apparent existence of an outward force in circular motion can be explained as inertia resisting the centripetal force.
  3. Describe the magnetic field around a permanent magnet and orientation of Earth’s magnetic field.
  4. Describe the magnetic field produced by current in a straight conductor and in a solenoid.
  5. Use the right hand rule to determine the direction of the magnetic field in a current carrying wire.
Vocabulary
Centripetal force, Circular motion, Axis of rotation, Tangential speed, Uniform circular motion, Magnitude, Centripetal acceleration, Tangential acceleration, Ferromagnetic, Magnetic domains
Magnetic field, Right Hand Rule, Solenoid
  1. Centripetal force object moving along a curved path; its direction is always orthogonal to the velocity of the body, toward the fixed point of the instantaneous center of curvature of the path. Centripetal force is generally the cause of circular motion.
  1. Circular motionis a movement of an object along the circumference of a circle or rotation along a circular path. It can be uniform, with constant angular rate of rotation (and constant speed), or non-uniform with a changing rate of rotation.
  1. Axis of rotation the fixed axis hypothesis excludes the possibility of a moving axis, and cannot describe such phenomena as wobbling or precession.
  1. Tangential speed is the linear speed of something moving along a circular path.
  1. Uniform circular motion describes the motion of a body traversing a circular path at constant speed.
  1. Magnitudeis the size of a mathematical object, a property by which the object can be compared as larger or smaller than other objects of the same kind. More formally, an object's magnitude is an ordering (or ranking) of the class of objects to which it belongs.
  1. Centripetal acceleration is of constant magnitude and directed at all times towards the axis of rotation. This acceleration is, in turn, produced by a centripetal force which is also constant in magnitude and directed towards the axis of rotation.
  1. Tangential acceleration
  1. Ferromagnetic iron form permanent magnets, or are attracted to magnets. In physics, several different types of magnetism are distinguished.
  1. Magnetic domains region has uniform magnetization This means that the individual magnetic moments of the atoms are aligned with one another and they point in the same direction.
  1. Magnetic field magnetic influence of electric currents and magnetic materials The magnetic field at any given point is specified by both a direction and a magnitude (or strength); as such it is a vector field
  1. Right Hand Rule a common mnemonic for understanding notation conventions for vectors in 3 dimensions. It was invented for use in electromagnetism by British physicist John Ambrose Fleming in the late 19th century.
  1. Solenoid (French solénoïde, from the Greek solen "pipe, channel" + combining form of Greek eidos "form, shape") is a coil wound into a tightly packed helix. The term was invented by French physicist André-Marie Ampère to designate a helical coil.