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Exam (elaborations)

BMAT Exam Questions and Answers (Latest update 2024) 200+ Questions

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BMAT Exam Questions and Answers (Latest update 2024) 200+ Questions

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  • August 26, 2024
  • 59
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BMAT
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BMAT Exam Questions and Answers
(Latest update 2024) 200+ Questions
What factors affect the magnitude of an induced voltage? - Correct Answer
✅- the rate at which the wire cuts the magnetic field lines

-- e.g.the magnet spins at a greater rate meaning more field lines are cut per
second

-- a stronger magnet is used meaning there are more magnetic field lines

- the rate at which the magnetic filed through a conductor changes

-- e.g. the ac frequency in coil A is increased

-- e.g. the ac amplitude in coil A is increased

- number of turns in the coil is increased



nano- - Correct Answer ✅10⁻⁹



micro- - Correct Answer ✅10⁻⁶ (µ)



milli- - Correct Answer ✅10⁻³



centi- - Correct Answer ✅10⁻²



deci- - Correct Answer ✅10-¹



kilo- - Correct Answer ✅1000 or 10³



mega- - Correct Answer ✅10⁶



giga- - Correct Answer ✅10⁹

,BMAT Exam Questions and Answers
(Latest update 2024) 200+ Questions
What is the role of red blood cells in the blood? - Correct Answer ✅Carry
oxygen



What is the role of white blood cells in the blood? - Correct Answer
✅antibody production and phagocytis



What is the role of platelets in the blood? - Correct Answer ✅Blood clotting



What are the roles of plasma in the blood? - Correct Answer ✅- transport
of blood components and other dissolved substances and other dissolved
substances including hormones, antibodies, urea and carbon dioxide

- distribution of heat



What are the properties of transition metals? - Correct Answer ✅they are
able to form stable ions in different oxidation states b. they often form
coloured compoundsc. they are often used as catalysts (as ions or atoms)



Test for oxygen - Correct Answer ✅Relights a glowing splint



Test for chlorine - Correct Answer ✅damp blue litmus paper turns red and
is the bleached (paper turns white)



Flame test - Li - Correct Answer ✅crimson red



Flame test - Na - Correct Answer ✅yellow orange



Flame test - K - Correct Answer ✅lilac



Flame test - Ca - Correct Answer ✅red orange

,BMAT Exam Questions and Answers
(Latest update 2024) 200+ Questions

Flame test - Cu - Correct Answer ✅green



How do you test for the presence of water? - Correct Answer ✅- Add
anhydrous copper(II) sulfate

- Results in a colour change from white to blue



How can two insulators become charged? - Correct Answer ✅by friction

- when two insulators move relative to each other, they can become
electrically charged

- one will become positively charged and the other negatively charged

- e.g plastic rubbed by a duster, hair combed, fuel moving through a pipe
and an aeroplane moving through the air



Can conductors become charged by friction? - Correct Answer ✅Yes, if
they are insulated from their surroundings, otherwise the charge will leak
away



How can a neutral object become charged by induction? - Correct Answer
✅Much like when a unmagnetised piece of iron becomes magnetised when
it moves near to a magnet, a neutral object can become charged when
placed near to a charged object



How can an object charged by induction become permanently charged? -
Correct Answer ✅If it is momentarily earthed, allowing the charge at one
end to leak away



How does an object become charged in terms of particles? - Correct
Answer ✅- when two objects are rubbed together, there is a transfer of
electrons

, BMAT Exam Questions and Answers
(Latest update 2024) 200+ Questions
- if an object gains electrons, it becomes negatively charged

- if an object loses electrons, it becomes positively charged

ELECTROSTATIC CHARGE IS ALWAYS CAUSED BY ELECTRONS

- which way the electrons move and so how each material becomes charged
depends on how strongly the atoms attract electrons



What are uses of electrostatic charging by friction? - Correct Answer ✅-
photocopying

- laser printing

- electrostatic air cleaning



What are risks of electrostatic charging by friction? - Correct Answer ✅-
can result in sparks

-- occur when air between two objects becomes ionised and starts
conducting

- two charged objects with air between them can discharge a spark when the
charge becomes large enough or the distance between them becomes small
enough



How can the risks associated with electrostatic charging by friction be
eliminated? - Correct Answer ✅earthing

- by both being connected by a wire or one object being connected by a wire
to the earth

-- means that electrostatic charging cannot take place so the risk is averted



wires crossing - Correct Answer ✅



wires connected - Correct Answer ✅

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