Question

communicate your solution.
question 3. (10 marks) state whether the following are true or false. if false if change the highlighted word to make the statement true

• the earth is a giant magnet with north and south poles
• alternating current = eskom/mains electricity,

direct current = battery power

• an electromagnet is a temporary magnet. loses its magnetic field after some time.
• natural disasters are floods, earthquakes, volcanic eruptions, hurricane/

tornados.

• same pole magnets repel each other. opposite poles attract each other

Explanation:

Step1: Analyze each statement

• The Earth has a magnetic field and can be considered a giant magnet with north and south poles. This statement is True.
• Alternating current (AC) is indeed the type of electricity supplied by Eskom/mains. Direct current (DC) is typically provided by batteries. This statement is True.
• An electromagnet is a temporary magnet as its magnetic field exists only when an electric current is flowing. When the current is stopped, it loses its magnetic field. This statement is True.
• Floods, earthquakes, volcanic eruptions, hurricanes, and tornados are all natural disasters. This statement is True.
• Like poles (same poles) of magnets repel each other and opposite poles attract. This statement is True.

Answer:

• The Earth is a Giant Magnet with North and South Poles: True
• Alternating Current = Eskom/Mains electricity, Direct Current = Battery power: True
• An Electromagnet is a Temporary Magnet. Loses its magnetic field after some time: True
• Natural disasters are Floods, Earthquakes, Volcanic Eruptions, Hurricane/tornados: True
• Same Pole magnets Repel each other. Opposite Poles attract each other: True