BMAT 2007 Section 2 Question 8
An oxide of iron has the formula Fe3O4 and contains both Fe^2+ and Fe^3+ ions. Which one of the following is the fraction of iron ions that are in the…
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9 January 2024
BMAT 2007 Section 2 Question 7
A 100 % efficient transformer has 1500 turns on its primary coil. The input to the transformer is 250V ac. The output current is 10A and the output power is…
9 January 2024
BMAT 2007 Section 2 Question 6
The oscillation period, t, for a spiral spring (weight w, radius R made from wire length l, radius r with a modulus of rigidity n) with a weight W hanging…
9 January 2024
BMAT 2007 Section 2 Question 5
The three statements below are about exhaling.1 The ribs swing down and inwards during exhaling.2 The diaphragm muscles contract during exhaling.3 The pressure in the lungs increases during exhaling.Which statements…
9 January 2024
BMAT 2007 Section 2 Question 4
The equation connects the variables A, x, y, z, P and Q The following changes are made:x and y are both increased by 50 %z is decreased by 20 %P…
9 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 2007 Section 2 Question 2
Element x is in the second period of the Periodic Table. An atom of element y has six moreprotons than an atom of element x. Which statement must be correct?…
9 January 2024
BMAT 2007 Section 2 Question 1
The table shows the percentages of some substances measured in fluid taken from a human kidney.Which letter on the diagram shows the most likely source of the fluid? Answer: 1)…
9 January 2024