1) When two like poles of a magnet are close they ________ each other. a) attract b) repel 2) When two like poles of a magnet are close they ________ each other. a) attract b) repel 3) When two like poles of a magnet are close they ________ each other. a) attract b) repel 4) When the north pole of a magnet is close to iron it will _________ a) Attract b) Repel 5) When the south pole of a magnet is close to iron it will ________ a) Attract b) Repel 6) An _____________ magnet is turned into a magnet when it is put into a magnetic field. a) Permanent b) Compass c) Protractor d) Induced e) Dipole 7) Where is the magnetic field the strongest on a bar magnet? a) where the lines cross b) in the middle c) at the South pole d) at the north pole e) where the lines are closest 8) In what direction do magnetic field lines point? a) from N to S b) from S to N c) in all directions

Magnets and magnetism

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？