Science Assessment term 3

Which of these examples is an electrical insulator?

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What causes static electricity? (choose more than 1 answer)

• battery, wire and light bulb are connected in a circuit

• the imbalance between positive and negative charges in an object

• The rubbing of certain materials against one another

• battery, iron nail and wire are connected to attract paper clips

Look at the picture and state whether it is series or parallel.

Look at the picture and state whether it is closed or open circuit.

What will happen to these magnets

• repel each other

• attract each other

Choose the conditions where magnets repel each other. (choose more than one answer)

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What makes magnets attract each other?

Look at the pair of magnets, predict if the pairs will attract or repel each other.

• attract

• repel

Which of these statements are correct about electromagnet? (choose 2 correct answers)

• increasing the numbers of coils increases the strength of an electromagnet.

• the bigger the number of coils, the less paper clip attached

• Increasing the voltage provided (battery) increases the strength of an electromagnet.

• the more the battery, the less paper clip attached

Which of the followings are the examples of electromagnet in daily life? (choose more than 1 answers)

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