1) What is a magnet a) An object that attracts iron and few metals b) A thing that attracts iron and few metals c) The physical properties of matter 2) What is a magnetism a) A space around a magnets that forces it to act b) physical properties of matter c) something that allows it to repel things 3) What is a magnetic field a) Something that attracts things from far away b) changes in what is n pole and s pole c) The space around the magnet where the forces of the magnet act 4) Does this repel or attract a) repel b) attract c) attraction 5) Does this attract or repel a) Repel b) attract c) Repulsion 6) What are two things that make an electromagnet stronger a) Add more current b) Add more coils around the iron nail c) Add a stronger batteries  d) Add a stronger wire 7) Why is the electromagnet different from a magnet a) because it has an end and side poles b) because it has a nail and a coil c) because it has a coil of wires that acts when an electric current pass through it 8) Also why is the magnet different from the electromagnet a) because the magnet always has a magnetic field and always has a magnetic behavior b) because it has end and side poles c) because it attract and repel objects 9) What will happen if this electromagnet attracted 0 paperclips and what if it attracted 100 paperclips a) It did not attract any paperclips (0) b) It attracted 5 paperclips (100) c) It attracted 20 paperclips (100) d) It attracted 4 paperclips (100) 10) What is an electromagnet a) A device in which current produces magnetic field b) A device in which current produces magnetism c) A device in which current produces electromagnet

Magnet

列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?