question 6
Question 6
Study the diagram below showing structures of two different substances (A and B) andanswer the questions that follow. 6.1 Choose the substance (A or B) that describes the following: 6.1.1 Metallic structure (1) 6.1.2 Structure of magnesium chloride (1) 6.2 Explain how the type of bond in substance A forms. (2) 6.3 Name the type … Read more
Question 6
Study the two transverse waves, P and Q, as shown below. 6.1 Write down ONE difference and ONE similarity between wave P and wave Q. (2) 6.2 For wave pattern P, write down: 6.2.1 Two points that are out of phase (1) 6.2.2 The amplitude of the wave (1) 6.3 Define the term frequency of … Read more
Question 6
QUESTION 6 (Start on a new page.) 6.1 The first step in the extraction of zinc from zinc sulphide (ZnS) is thecombustion of ZnS in oxygen. The balanced equation for the reaction is: 6.1.1 Is the reaction above EXOTHERMIC or ENDOTHERMIC? Give a reason for the answer. (2) Oxygen gas consists of oxygen molecules. 6.1.2 … Read more
Question 6
The alarm of a vehicle parked next to a straight horizontal road goes off, emittingsound with a wavelength of 0,34 m. A patrol car is moving at a constant speed on thesame road. The driver of the patrol car hears a sound with a frequency of 50 Hz lowerthan the sound emitted by the alarm. … Read more