1) Which of the following is a magnet? a) Iron nail b) Wooden ruler c) Plastic spoon d) Aluminium foil 2) Like poles of a magnet attract each other. a) True b) False 3) Which of these materials is non-magnetic? a) Paperclip b) Iron nail c) Wooden ruler d) Fridge magnet 4) What are the two poles of a magnet called? a) North and South b) Top and Bottom c) Positive and Negative d) Left and Right 5) What is an electromagnet? a) A magnet that works when electric current flows b) A permanent magnet c) A magnet made from metal only d) A non-magnetic material 6) How can you make an electromagnet stronger? a) Increase the electric current b) Decrease the number of wire coils c) Remove the battery d) Use plastic instead of metal 7) You have a nail, copper wire, and battery. What can you make? a) Permanent magnet b) Electromagnet c) Non-magnetic ruler d) Paperclip 8) Which of the following is a real-life use of electromagnets? a) Holding fridge magnets b) MRI machines c) Picking up a paperclip on the desk d) Compass 9) A bar magnet is broken into two pieces. What happens? a) Each piece has no poles b) Each piece has a North pole only c) Each piece becomes a separate magnet with North and South poles d) Both pieces lose magnetism 10) Magnetic field lines always go from the South pole to the North pole. a) True b) False

Magnets & Electromagnets

by
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?