1.2.1 Use of Apparatus and Techniques

• What is the purpose of a ruler in a physics lab?

  Measure length and distance
• What is the primary function of a balance in a physics lab?

  Measure mass
• A Bunsen burner provides a controlled heat source in the lab.

  True
• What is the key to obtaining accurate time measurements with a stopwatch?

  Start and stop precisely
• Why is it important to properly dispose of waste in the lab?

  Prevent contamination
• It is unnecessary to know the location of safety equipment in the lab.

  False
• Adhering to safety procedures ensures a productive lab environment.

  True
• A thermometer is used to measure mass in a physics lab.

  False
• Which apparatus is used to accurately transfer small volumes of liquids?

  Pipette
• Steps in using a ruler for accurate length measurement

  1️⃣ Align the zero mark with one end

  2️⃣ Record the length in millimeters or centimeters
• Wearing safety goggles is optional when handling chemicals in the lab.

  False
• Keep the work area clean and organized
• When handling chemicals or operating equipment, wear appropriate PPE
• When using a thermometer, wait for the reading to stabilize
• Steps to use a ruler properly

  1️⃣ Align the zero mark

  2️⃣ Read the length in millimeters or centimeters
• What is the primary purpose of organizing data in tables?

  Comparison and analysis
• Match the measurement technique with its purpose:

  Ruler ↔️ Determining object length

  Stopwatch ↔️ Timing events

  Balance ↔️ Weighing samples

  Uncertainty ↔️ Evaluating data reliability
• A clean and organized workspace reduces the risk of tripping hazards.


  True
• Steps for using a ruler to measure length

  1️⃣ Align the zero mark with one end of the object

  2️⃣ Read the length in millimeters or centimeters
• What is the purpose of data handling in scientific experiments?

  Interpreting results
• Drawing conclusions involves interpreting the results and their significance in the context of the experiment.

  True
• A stopwatch is used to measure time intervals
• A beaker is used to hold and measure volumes of liquids
• What is the purpose of a retort stand in a physics lab?

  Support and hold apparatus
• Uncertainty in measurements indicates precision and accuracy
• Steps to maintain lab safety

  1️⃣ Wear appropriate PPE

  2️⃣ Follow instructions carefully

  3️⃣ Keep the work area clean

  4️⃣ Dispose of waste properly

  5️⃣ Report any unsafe conditions
• Match the equipment with its proper use:

  Ruler ↔️ Measure length

  Stopwatch ↔️ Measure time intervals

  Thermometer ↔️ Measure temperature

  Balance ↔️ Measure mass
• The Bunsen burner provides a controlled heat source
• Always wear lab coats, safety goggles, and gloves
• Uncertainty in measurements indicates the precision and accuracy of the data.


  True
• When handling chemicals, it is essential to wear lab coats, safety goggles, and gloves
• When heating a liquid with a Bunsen burner, always use heat-resistant gloves and safety goggles
• A balance should be calibrated before measuring mass to ensure accuracy.


  True
• What should you wear when measuring the temperature of a hot liquid to avoid burns?

  Heat-resistant gloves
• Uncertainty in measurements indicates the reliability of the data.

  True
• Mathematical operations are performed during data analysis to make calculations
• A pipette is used to accurately transfer small volumes of liquids.


  True
• Uncertainty in measurements indicates precision and accuracy.

  True
• Data logging software can automatically plot graphs
• What does PPE stand for in the context of lab safety?

  Personal Protective Equipment