Practice Dimensions Of Physical Quantities (1.3)

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8 questions

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6 sample questions

Question 1.
What is the dimension of mass?
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Think about the fundamental units.
Question 2.
What are the seven base quantities?
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Recall the acronym we discussed.
3Question 3.
What are dimensions of force?
- [M][L]^2[T]^-1
- [M][L][T]^-2
- [M]^2[T]^-2
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Consider how force is calculated.
4Question 4.
True or False: Dimensional analysis can prove an equation is correct.
- True
- False
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Reflect on what dimensional analysis checks.
Question 5.
Using dimensional analysis, prove that the formula for gravitational potential energy (PE = mgh) is dimensionally consistent.
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Break down each term according to its dimensions.
Question 6.
Derive the dimensional formula for the frequency of a wave and explain its significance.
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Look at how frequency is defined.

4 more questions in this section. Enroll free to practise them all.