1) What is an electric charge? a) A form of energy b) A property of matter c) A type of force d) A magnetic field 2) What happens when like charges meet? a) They attract b) They repel c) They neutralize d) They combine 3) What happens when opposite charges meet? a) They repel b) They attract c) They neutralize d) They separate 4) What is electric current? a) Flow of electrons b) Flow of protons c) Flow of neutrons d) Flow of atoms 5) What is a series circuit? a) Two paths for current b) Multiple paths for current c) No path for current d) One path for current 6) What is a parallel circuit? a) One path for current b) Multiple paths for current c) No path for current d) Two paths for current 7) What is the unit of electric charge? a) Volt b) Ampere c) Coulomb d) Watt 8) What is the unit of electric current? a) Volt b) Ampere c) Coulomb d) Watt 9) What is the effect of adding more resistors in series? a) Decreases resistance b) Increases resistance c) No change d) Decreases current 10) What is the effect of adding more resistors in parallel? a) Decreases resistance b) Increases resistance c) No change d) Increases current 11) What is the symbol for electric current? a) V b) I c) R d) C 12) What is the symbol for resistance? a) V b) I c) R d) C 13) What is the symbol for voltage? a) V b) I c) R d) C 14) What happens to voltage in a series circuit? a) Decreases b) Remains constant c) Increases d) Divides among components 15) What happens to current in a parallel circuit? a) Divides among branches b) Remains constant c) Increases d) Decreases 16) What are the two poles of a magnet called? a) North and South b) East and West c) Top and Bottom d) Left and Right 17) What is a permanent magnet? a) Temporary magnet b) Always magnetic c) Non-magnetic d) Electric magnet 18) What is an electromagnet? a) Permanent magnet b) Magnet by electricity c) Natural magnet d) Weak magnet 19) How can magnets generate electricity? a) By heating b) By cooling c) By moving d) By compressing 20) Which material is commonly used to make magnets? a) Plastic b) Iron c) Wood d) Glass 21) What property allows magnets to attract metals? a) Magnetism b) Electricity c) Gravity d) Friction 22) Which of these is a use of magnets in everyday life? a) Cooking b) Gardening c) Painting d) Refrigerator doors 23) What happens when like poles of two magnets are brought together? a) They attract b) They repel c) They fuse d) They break 24) What is the main difference between permanent magnets and electromagnets? a) Size b) Material c) Magnetism source d) Color 25) Which device uses electromagnets? a) Compass b) Electric motor c) Clock d) Calculator 26) How are magnets formed naturally? a) By lightning b) By rain c) By volcanic activity d) By wind 27) What is a common use of electromagnets? a) Holding papers b) Lifting heavy metals c) Writing d) Cooking 28) What happens when opposite poles of two magnets are brought together? a) They repel b) They explode c) They melt d) They attract 29) Which of these is not a property of magnets? a) Attraction b) Repulsion c) Conductivity d) Polarity 30) What is the role of magnets in generators? a) To heat b) To produce electricity c) To cool d) To store data

2-5 Electromagnetism

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