Thermal Energy and Phase Change Experiments

In this video tutorial, Sarah Dix, a physics teacher at Reading House School, guides students through two experiments to explore the properties of water. The first experiment focuses on determining the specific heat capacity of water, detailing the necessary equipment and step-by-step procedure. The second experiment investigates how the temperature of ice changes as it melts, requiring students to record temperature data and analyze it through graphing. The video aims to equip students with the skills to conduct these experiments independently and understand the underlying physics concepts.

What is the main focus of the video tutorial?

• Investigating the properties of metals

• Exploring the properties of water

• Studying the properties of gases

• Analyzing the properties of solids

Which equipment is NOT required for the specific heat capacity experiment?

• Bunsen burner

• Polystyrene cup

• Beaker

• Thermometer

What is the first step in setting up the equipment for the specific heat capacity experiment?

• Add water to the beaker

• Place the cup on the balance and press zero

• Connect the immersion heater

• Start the stop clock

Why is it important to ensure the heating element is below the water level?

• To ensure accurate temperature readings

• To avoid overheating the beaker

• To transfer maximum energy to the water

• To prevent the water from boiling

What should you do after turning on the immersion heater?

• Start the stop clock and stir the water

• Add more water to the beaker

• Record the mass of the water

• Turn off the dual meter

How do you calculate the change in thermal energy in the first experiment?

• By measuring the mass of the water

• By calculating the volume of water

• By using the reading from the dual meter

• By recording the initial temperature

What is the first step in the melting ice experiment?

• Add crushed ice to a boiling tube

• Heat the beaker with a Bunsen burner

• Pour hot water into the beaker

• Record the temperature of the water

During the melting ice experiment, how often should you record the temperature?

• Every 30 seconds

• Every minute

• Every 5 minutes

• Every 10 minutes

What should you do after the ice has completely melted in the second experiment?

• Turn off the Bunsen burner

• Add more ice to the boiling tube

• Continue recording for three more minutes

• Stop recording the temperature

What concept should you use to explain the shape of the graph in the melting ice experiment?

• The boiling point of water

• The arrangement of particles during phase change

• The specific heat capacity of water

• The density of ice