General Mathematics QUARTER 2 EXAM

During a week-long science experiment focused on food chemistry and measurement accuracy, Grade 11 students were tasked with analyzing the mass of various kitchen substances using digital scales. Their goal was to understand how different metric units are used depending on the quantity and context of the material. The group was given three samples: • Salt: 500 milligrams • Sugar: 2 grams • Flour: 1.5 kilograms Their teacher emphasized the importance of choosing the correct metric unit based on the substance’s amount and purpose. Milligrams are ideal for very small quantities like medicine or spices, grams for moderate amounts like recipe ingredients, and kilograms for bulk items. Students were asked to convert all measurements to the same unit, create a bar graph, and reflect on how unit precision affects scientific and culinary outcomes.

• A. Salt, Sugar, Flour

• B. Sugar, Salt, Flour

• C. Flour, Sugar, Salt

• D. Salt, Flour, Sugar

Why is it important to use milligrams instead of kilograms when measuring salt for a recipe?

• Kilograms are easier to calculate.

• Milligrams are more accurate for small quantities.

• Salt is heavier than flour.

• Recipes always use milligrams.

A student wants to measure 0.75 grams of baking soda for a chemistry experiment. Which tool and unit should they use to ensure precision?

• Kitchen scale and kilograms

• Measuring cup and liters

• Digital scale and milligrams

• Thermometer and Celsius

What is the correct conversion of 1.2 liters of milk to milliliters?

• 120 mL

• 1,200 mL

• 12,000 mL

• 0.12 mL

Why is it important for Sarah to convert all ingredients to the same unit before baking?

• To make the cookies taste sweeter

• To reduce the number of ingredients

• To ensure accurate measurement and consistency

• To make the recipe easier to memorize

If Sarah wants to double the recipe, how much flour will she need in grams?

• 3,000 g

• 1,500 g

• 750 g

• 2,000 g

What is the surface area of the original box?

• 24 cm²

• 52 cm²

• 48 cm²

• 60 cm²

Which statement best explains why doubling the dimensions of the box increases the surface area more than twice?

• A. Because surface area depends on volume

• B. Because each face becomes four times larger

• C. Because surface area grows with the square of the dimensions

• D. Because the box becomes heavier

If the top face of the box has a circular window with a radius of 1 cm, what is the new surface area after subtracting the window’s area? (Use π ≈ 3.14)

• A. 48.86 cm²

• B. 50.86 cm²

• C. 52 cm²

• D. 49.86 cm²

What is the volume of the original cylindrical tank in cubic meters?

• A. 18.84 m³

• B. 24.00 m³

• C. 37.68 m³

• D. 75.36 m³