w, x, y and z are integers such that w < x2, x > y2, y2 < z2 and x > z . Which one of the following inequalities must…

Consider this circuit. Which line in the table gives the current flowing in the ammeter, in amps, when the switch isopen, and when it is closed? Answer: 11) B The…

Cyclohexene, C6H10, can be represented as:Use this information to calculate the relative molecular mass of the hydrocarbon shown below:[Ar values: H = 1; C = 12] Answer: 10) D In…

Here are five statements about natural selection:1 Individuals within a species show variation.2 Individuals within a species compete with each other for, among other things, resources.3 Individuals with advantageous adaptations…

If you look at a clock and the time is 9.45, what is the angle between the hour and the minute hands? Answer: 8) D Number of degrees in a…

Which one of the following statements about nuclear physics is true? Answer: 7) E A – WrongThe definition of nuclear fission is splitting of a nucleus into two smaller nuclei.…

When molecules collide, for a reaction to take place, two conditions must be met. Firstly, theymust have sufficient energy to react and secondly, they must have the right orientation. Thismeans…

The following statements relate to typical nuclear division in human cells:1 mitosis results in variation within the species2 meiosis results in the production of genetically identical cells3 mitosis results in…

Simplify:3x(3x⁻⅓)³ Answer: 4) C 3x(3x⁻⅓)³ 3x(3³ x⁻³⁄₃) 3x(27x⁻¹) 3x (27/x) 3 x 27 = 81

Two identical cars, P and Q, start at the same level. Car P moves at a constant speed of 10m/s up a hill to a height of 25m in a…