Mathematical Skills and Units (Grade 10 NSC Matric Physical Sciences): Quizzes

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Mathematical Skills and Units
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When rounding 3.4762 to 2 decimal places, what is the result?

3.48

In scientific notation N×10nN \times 10^n, what range must NN be in?

Between 1 and 10

What is 0.000045 written in scientific notation?

4.5×10−54.5 \times 10^{-5}

Which SI base unit measures electric current?

ampere (A)

What is the derived unit for force expressed in base units?

kg⋅m⋅s−2\text{kg}\cdot\text{m}\cdot\text{s}^{-2}

What is the exponent value for the prefix 'nano' (n)?

10−910^{-9}

How many metres is 3800 mm?

3.8 m

What is 25°C in kelvin?

298 K

If E=hcλE = \frac{hc}{\lambda}, what is λ\lambda equal to?

λ=hcE\lambda = \frac{hc}{E}

In trigonometry, what does sin⁡A\sin A equal?

opposite/hypotenuse

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