Measuring Mass with a Balance Scale

This video tutorial teaches how to find the mass of an object using a balance scale. It explains the concept of mass, comparing gases, liquids, and solids. The tutorial covers measuring mass in grams and kilograms, using benchmark weights, and different types of scales. It provides practical examples of using a balance scale to measure the mass of a pencil and a baseball, emphasizing the importance of using known masses to achieve balance.

Which of the following statements is true about the mass of gases, liquids, and solids?

• Solids usually have the most mass.

• Liquids have less mass than gases.

• Gases have more mass than solids.

• The mass of an object is always related to its size.

What is the mass of a paper clip approximately?

• 100 grams

• 1 gram

• 1 kilogram

• 10 grams

What does the prefix 'kilo' mean in the metric system?

• 100

• 1000

• 1

• 10

How do you use a balance scale to measure the mass of an object?

• Use a spring scale to measure the weight directly.

• Place the object on both sides and compare the sizes.

• Estimate the mass based on the object's size.

• Place the object on one side and add known weights to the other until balanced.

If a baseball has a mass of 122 grams, which weights were used to balance it on a scale?

• 122 grams directly

• 100 grams and 22 grams

• 100 grams, 20 grams, and 2 grams

• 120 grams and 2 grams