NSC Physical Sciences – South Africa

Question 11

A wave has a frequency of 500 Hz and a wavelength of 0.6 m. What is its speed?

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Question 12

Which property is characteristic of a crystalline solid?

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Question 13

During a chemical reaction, what does the law of conservation of mass state?

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Question 14

Which functional group is present in alcohols?

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Question 15

What is the magnetic field direction inside a solenoid carrying current?

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Question 16

Which process describes the change of a substance directly from solid to gas?

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Question 17

In a chemical reaction, if the rate increases when a catalyst is added, what is the effect of the catalyst?

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Question 18

Which type of wave is a transverse wave?

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Question 19

Which of the following correctly describes the direction of the magnetic field around a current-carrying wire?

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Question 20

Which type of atomic bonding involves the sharing of electron pairs between atoms?

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