A cyclist and a bike have a combined mass of 100kg. The cyclist free-wheels (rolls without pedalling) at a constant speed of 0.8m/s down a 1 in 10 slope (this…

Tritium, symbol T, is hydrogen with a mass number of 3. It is radioactive and undergoes βdecay.Which of the following could be the only product(s) after a quantity of HTO…

In a monohybrid genetic cross a ratio of phenotypes of 3:0 rather than the usual 3:1 ratio wasseen. This could be due to:1 offspring with both dominant alleles not surviving.2…

In a fairground game there are two bags, each of which contains 4 coloured balls. There are a total of 4 red balls, 3 yellow balls and 1 blue ball.…

The circuit shows three lamps and two ammeters in a circuit. Lamp X 'blows' (the filament breaks).What happens to the reading on each ammeter, and to the total resistance of…

Vanadium is a metal that lies just above zinc in the reactivity series. Which one of the following could not be used to obtain the metal from its ore? Answer:…

Consumption of alcohol leads to an increase in dilute urine production by reducing the level of the hormone ADH.Which of the following are correct statements about alcohol and/or ADH?1 ADH…

Azurite is a mineral made up of a mixture of CuCO3 and Cu(OH) 2. Which one of the following is a possible formula of azurite? Answer: 14) F By looking…