Bulk & Surface Properties (AQA GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is nanoscience?
What is nanoscience?
Study of nanoparticles
What is the size range of nanoparticles?
What is the size range of nanoparticles?
1-100 nm
One nanometre is equal to what fraction of a millimetre?
One nanometre is equal to what fraction of a millimetre?
One millionth
Why do nanoparticles behave differently from larger amounts of the same material?
Why do nanoparticles behave differently from larger amounts of the same material?
They have a higher surface area to volume ratio
What happens to surface area to volume ratio as particles get smaller?
What happens to surface area to volume ratio as particles get smaller?
It gets much bigger
A cube has what surface area to volume ratio?
A cube has what surface area to volume ratio?
6
Why are nanoparticles useful as catalysts?
Why are nanoparticles useful as catalysts?
More surface area exposed to react
How are nanoparticles used in medicine for drug delivery?
How are nanoparticles used in medicine for drug delivery?
To deliver drugs directly to body parts
Why do nanoparticles in suncream work better?
Why do nanoparticles in suncream work better?
They cover more skin surface area
Which is NOT a use of nanoparticles mentioned?
Which is NOT a use of nanoparticles mentioned?
Water purification filters
What are buckyballs made entirely of?
What are buckyballs made entirely of?
Carbon atoms
What is a concern about nanoparticles in suncream?
What is a concern about nanoparticles in suncream?
They damage DNA in living cells