Weights & Measures Equivalents/Conversions MCQs Quiz | Class 9

This is an MCQ quiz for Class IX Home Science (Code 064), Unit: Practical, focusing on the topic of Weights & Measures Equivalents/Conversions. It covers essential conversions like ounce to gram, standard measures like cup, teaspoon, and tablespoon, and the correct use of a kitchen scale. Attempt all questions, click submit to see your score, and then download the PDF of your answers for review.

Understanding Weights and Measures in the Kitchen

Accurate measurement is the foundation of successful cooking and baking. Following a recipe precisely ensures that the final dish has the intended texture, flavor, and appearance. This is especially critical in baking, where the chemical reactions depend on the correct ratio of ingredients. In Home Science, mastering kitchen measurements is a fundamental practical skill.

Key Measurement Concepts

1. Ounce to Gram Conversion

In many recipes, especially those from Western countries, ingredients are measured in ounces (oz), which is a unit of weight. In the metric system used in India and most of the world, we use grams (g). It’s crucial to know the conversion:

  • 1 Ounce (oz) is approximately equal to 28.35 grams (g).
  • For quick kitchen calculations, this is often rounded to 28g or 30g. Using a digital kitchen scale is the most accurate way to convert and measure these units.

2. Volumetric Measures: Cup, Teaspoon, and Tablespoon

These are the most common units for measuring volume, especially for liquids and small quantities of dry ingredients.

  • Teaspoon (tsp): Used for small amounts of ingredients like spices, baking soda, or extracts.
  • Tablespoon (tbsp): Larger than a teaspoon. The standard conversion is 1 Tablespoon = 3 Teaspoons.
  • Cup: A standard unit for larger volumes. A standard cup measure is equivalent to 16 Tablespoons or approximately 240 millilitres (ml). It’s important to use the correct type of measuring cup: a liquid measuring cup for fluids and dry measuring cups for ingredients like flour and sugar.

3. The Role of a Kitchen Scale

A digital kitchen scale is an invaluable tool for precision. It measures weight, which is more accurate than measuring volume, as the density of dry ingredients can vary. For example, a cup of sifted flour weighs less than a cup of packed flour.

  • Accuracy: Provides exact measurements in grams or ounces.
  • ‘Tare’ Function: This is a key feature. Pressing the ‘tare’ or ‘zero’ button resets the scale to zero. This allows you to place a bowl on the scale, press ‘tare’, and then add your ingredient to measure only its weight, ignoring the bowl’s weight. You can press ‘tare’ again after adding each new ingredient to the same bowl.

Quick Conversion Table

Unit Metric Equivalent (Approx.) Imperial Equivalent
1 Teaspoon (tsp) 5 ml 1/3 Tablespoon
1 Tablespoon (tbsp) 15 ml 3 Teaspoons
1 Cup 240 ml 16 Tablespoons
1 Ounce (oz) 28.35 g –
1 Pound (lb) 454 g 16 Ounces

Quick Revision Points

  • Weight is measured in grams (g) and ounces (oz). Volume is measured in cups, tablespoons (tbsp), and teaspoons (tsp).
  • 1 Ounce is about 28.35 grams.
  • 1 Tablespoon = 3 Teaspoons.
  • 1 Cup = 16 Tablespoons.
  • Use a digital kitchen scale for the most accurate weight measurements.
  • The ‘tare’ function on a scale lets you zero out the weight of the container.

Practice Questions

  1. If a recipe requires 4 ounces of butter, how many grams would you need?
  2. How many teaspoons are there in 2.5 tablespoons?
  3. Explain the difference between measuring 1 cup of milk and 1 cup of flour. What tools would you use for each?
  4. Describe the steps to measure 150 grams of sugar using a digital kitchen scale and a bowl.
  5. Why is measuring by weight generally more accurate than measuring by volume for dry ingredients?