Download CHAPTER 3 QUIZ – ELECTROMAGNETISM

CHAPTER 3 QUIZ – ELECTROMAGNETISM
NAME:
FILL IN THE BLANKS (1 MARK EACH x 15)
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An ELECTROMAGNET is a solenoid with iron in the middle of it.
An instrument used to detect small currents is called a GALVANOMETER.
OERSTED found that an electric current created a magnetic field.
A long coil of wire with many loops is called a SOLENOID.
ELECTROMAGNETISM is the relationship between electricity and magnetism.
The strength of a solenoid can be INCREASED by adding more coils, current, or
mostly by placing iron in the middle.
7. An ELECTRIC - MOTOR changes electrical energy into mechanical energy.
8. The voltage of AC can be changed by a TRANSFORMER.
9. FARADAY found that electromagnetic induction is true.
10. The Hoover Dam is an example a GENERATOR.
11. INDUCED – CURRENT is when a current is produced by a changing electric field.
12. A transformer that increases voltage is called a STEP-UP transformer and one that
decreases voltage is called a STEP-DOWN transformer.
WORD BANK
GENERATOR
ELECTROMAGNET
DECREASED
FARADAY
ELECTRIC
ELECTROMAGNETISM
TRANSFORMER
GALVANOMETER
INDUCED
OERSTED
CURRENT
FERROMAGNETIC
STEP-UP
INCREASED
STEP-DOWN
SOLENOID
MOTOR
MAGNET