ExpertEasy1 markMultiple Choice
AQA GCSE · Question 05.2 · Bonding structure and the properties of matter
A spherical coarse particle has a diameter of 4000 nm. A spherical fine particle has a diameter of 200 nm. How many times larger is the diameter of the coarse particle than the diameter of the fine particle?
A spherical coarse particle has a diameter of 4000 nm. A spherical fine particle has a diameter of 200 nm. How many times larger is the diameter of the coarse particle than the diameter of the fine particle?
Answer options:
A.
2 times
B.
5 times
C.
20 times
D.
50 times
How to approach this question
To find out how many times larger one number is than another, you divide the larger number by the smaller number. Calculate 4000 ÷ 200.
Full Answer
C.20 times✓ Correct
To find how many times larger the coarse particle's diameter is, we perform a division:\n\nRatio = (Diameter of coarse particle) / (Diameter of fine particle)\nRatio = 4000 nm / 200 nm\nRatio = 20\n\nSo, the diameter of the coarse particle is 20 times larger than the diameter of the fine particle.
Common mistakes
✗ Performing the division incorrectly.\n✗ Dividing the smaller number by the larger number.
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