Magnets and Magnetic fields

Which of the following elements are magnetic?

• Copper

• Nickel

• Aluminum

• Iron

What is the main difference between steel and iron?

• Steel is a mixture of iron and carbon

• Steel is a pure element

• Steel is a mixture of iron and aluminum

• Steel is a mixture of iron and nickel

What happens when opposite poles of magnets are brought close to each other?

• They cancel each other out

• They attract each other

• They repel each other

• They have no effect on each other

What do the magnetic field lines always point from and to?

• East to West

• North to South

• Up to Down

• Left to Right

What happens to the strength of the magnetic field as you move away from the magnet?

• It becomes unpredictable

• It remains constant

• It decreases

• It increases

How can the magnetic field lines of a magnet be shown using compasses?

• By arranging the compasses in a circle

• By arranging the compasses in a square

• By arranging the compasses in a straight line

• By arranging the compasses in a zigzag pattern

What is the shape of the Earth's magnetic field?

• Rectangular

• Spherical

• Similar to a bar magnet

• Circular

What does a compass needle point towards?

• Geographic North

• Geographic West

• Geographic East

• Geographic South

What is the purpose of a compass when navigating the planet?

• To find the geographic south

• To find the geographic west

• To find the geographic east

• To find the geographic north

What does the North Pole of a compass needle point towards?

• The South Pole of the Earth's magnet

• The North Pole of the Earth's magnet

• The South Pole of the Sun

• The North Pole of the Sun