BECE Science 2023 Paper

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Question : 25

Total: 40

The following products,

X

Y

Z

W

0.05 \text{ kg}

50 \text{ mg}

500 \text{ g}

0.05 \text{ g}

Use this information to answer the question below.

If all the products have equal volumes, which of the products would have the highest density?

$X$
$Y$
$Z$
$W$ and $X$

Solution:

Concept:

\text{Density} = \dfrac{\text{Mass}}{\text{Volume}}

. For equal volumes, the greatest mass gives the greatest density.

Solution:

Convert every mass to grams:

X:

0.05 \text{ kg} = 0.05 \times 1000 = 50 \text{ g}

Y:

50 \text{ mg} = \dfrac{50}{1000} = 0.05 \text{ g}

Z:

500 \text{ g}

W:

0.05 \text{ g}

Z has the largest mass, so Z has the highest density.

Answer:

Option C (Z)

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