BMAT 2011 Section 2 Question 3
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…
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11 January 2024
BMAT 2008 Section 2 Question 3
A radioactive isotope X decays into the stable isotope Y with a half-life of 20 s. Which graph correctly shows how the mass (m) of Y present in an initially…
11 January 2024
BMAT 2010 Section 2 Question 3
In a laboratory experiment, protactinium-234 undergoes radioactive decay by β-emission into uranium-234. The table below describes how the mass of uranium-234 present in the sample varies with time from the…
10 January 2024
BMAT 2007 Section 2 Question 3
A detector of radioactivity shows background radiation to be 20 counts per minute with no radioactive sources nearby. A radioactive source which emits alpha particles and beta particles is brought…
9 January 2024
BMAT 2006 Section 2 Question 3
A particular radioisotope X with a half-life of 4 years decays into the stable isotope Y. At a particular time, a sample contains 32 x 10²º atoms of nuclide X…
6 January 2024
BMAT 2005 Section 2 Question 3
One type of fission of 23892 U gives 9538 Sr and 13954 Xe as the main products.What else would be given off in the fission reaction? Answer: 3) D We…
5 January 2024
BMAT 2004 Section 2 Question 3
The equation summarises the reaction of copper and dilute nitric acid.qCu + rHNO3 → sCu(NO3)2 + 6H2O + tNO2What values of q, r, s and t are needed to balance…
5 January 2024