Magnets and magnetic materials

What type of magnets are in the pictures?

................. magnets

What do the ‘N’ and ‘S’ on the magnets show?

The ................. and .............. poles.

Complete these sentences about what is shown in the pictures:

• When two like poles come close to each other the magnets ​ (a)   each other.

• When two unlike poles come close to each other the magnets ​ (b)   each other.
  

• repel
• attract
• force

Which of the following materials is magnetic?

• wood

• iron

• glass

• plastic

• copper

What are magnetic materials?

• a. Materials that shine in the dark
  

• b. Materials that conduct electricity
  

• c. Materials that are attracted to a magnet

• d. Materials that can float in water

Which of the following statements is true?

• a. Wood and plastic are examples of metal objects.
  

• b. Glass and rubber are examples of non-metal objects.

• c. Copper and iron are examples of non-metal objects.
  

• d. All objects made of metal are magnetic.

Which of the following is a non-metal that is NOT attracted to a magnet?

• a. Iron
  

• b. Steel
  

• c. Wood

• d. Brass

Which group includes only precious metals?

• a. Gold, silver, platinum

• b. Iron, steel, zinc
  

• c. Copper, aluminium, brass
  

• d. Steel, chromium, zinc

Which statement about precious metals is correct?

• a. Precious metals like gold and silver are magnetic.
  

• b. Precious metals are used to make magnets.
  

• c. Precious metals are shiny and expensive, but they are not magnetic.

• d. Precious metals are usually mixed with wood.

What is an alloy?

• a. A soft type of plastic
  

• b. A single pure metal from nature
  

• c. A shiny non-metal object
  

• d. A mixture of two or more metals