8Gd Measuring Techniques in Science

What is the primary purpose of using a tare button on a balance?

• To zero the balance before weighing the substance.

• To measure the weight of the container.

• To calibrate the balance for different substances.

• To display the total weight including the container.

Which device is typically used for approximate volume measurements?

• Thermometer

• Measuring cup

• Pipette

• Graduated cylinder

What is the smallest increment that a burette can measure?

• 1.0 mL

• 2.0 mL

• 0.1 mL

• 0.5 mL

Why is it important to choose the right size measuring cylinder?

• Using a larger cylinder is always better for any measurement.

• It is important to choose the right size measuring cylinder to ensure accurate measurements and prevent spillage.

• All measuring cylinders provide the same accuracy regardless of size.

• It doesn't matter what size you use as long as it's a cylinder.

What type of scales are commonly used in everyday settings?

• Speedometer

• Bathroom scale, kitchen scale, ruler, tape measure

• Weight scale for livestock

• Pressure gauge

How accurate can some electronic balances measure mass?

• Some electronic balances can measure mass with an accuracy of up to 0.5 g.

• Some electronic balances can measure mass with an accuracy of up to 1 g.

• Some electronic balances can measure mass with an accuracy of up to 10 mg.

• Some electronic balances can measure mass with an accuracy of up to 0.1 mg.

What is the main difference between a beaker and a measuring cylinder?

• A beaker has a narrow neck, while a measuring cylinder has a wide base.

• The main difference is that a beaker is for mixing and holding liquids, while a measuring cylinder is for precise measurement of liquid volumes.

• A beaker is used only for heating liquids, while a measuring cylinder is for cooling.

• A beaker is always made of glass, while a measuring cylinder is made of plastic.

In what scenario would you prefer to use a burette over a measuring cylinder?

• When measuring large volumes of liquid.

• When precise volume measurement is needed, such as in titrations.

• In scenarios where color change is not important.

• For quick estimations without precision.

What unit of measurement is commonly used for mass in laboratories?

• liters

• meters

• grams

• joules

How do you ensure precision when reading measurements from a scale?

• Ensure the scale is calibrated, stable, and read at eye level.

• Ignore the calibration and just estimate the value

• Read the measurement from a distance

• Use a ruler to measure the scale