Chapter+19+Magnets

Chapter 19 Magnets Tim Lehotsky

Key Terms/Ideas

Like poles repel each other, unlike poles attract Soft magnetic materials are easily magnetized but lose it easily as well. Hard magnetic materials are difficult to magnetize, but retain the charge easier. Geographic North Pole-Magnetic South Pole Geographic South Pole-Magnetic North Pole SI unit of Magnetic field is the tesla (T)- T= N/(A*M)=10^4G Unit of current is Ampere (A) Unit of charge is Coulomb (C)

Formulas

Formulas



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Problems 1) Which of the following is easily magnetized? A) Soft Metals B) Fluoride C) Hard Metals D) Hard Magnetic Materials E) Soft Magnetic Materials

2) Where is the location of the true magnetic North Pole? A) Santa B) North Pole C) Africa D) A Land Down Under E) South Pole

3) Which of the following particles does the right hand rule NOT apply to: A) Protons B) Electrons C) Quarks D) Neutrons E) Zelenktrons

4) If a particle is headed up in a magnetic field with force pushing to the left, which way is the magnetic field going? A) Forwards B) Backwards C) Upwards D) Downwards E) Right

5) Which of the following is equal to one Tesla? A) 1 Kg/N*A B) 1 N/(A*M) C) 10 N/(A*M) D) 1 m/s*A E) 15 N*A/B