Quiz on Coefficient of Linear Expansion

What is the objective of Experiment 7?

• To measure the coefficient of linear expansion of different metals.

• To determine the density of various liquids.

• To analyze the thermal conductivity of metals.

• To study the properties of gases.

Which apparatus is NOT mentioned in the experiment?

• Thermometer

• Bunsen Burner

• Steam generator

• Microscope

What does the coefficient of linear expansion represent?

• The change in length per unit length per degree change in temperature.

• The change in volume per degree change in temperature.

• The change in mass per degree change in temperature.

• The change in density per degree change in temperature.

In the procedure, what should be done after heating the steam generator?

• Attach the rubber tubing to the linear expansion apparatus.

• Measure the initial length of the rod.

• Wait for the steam to condense.

• Record the temperature of the steam.

If the initial length of the iron rod is 2 m and the change in length is 0.000024 m, what is the coefficient of linear expansion?

• 12x10^-6 /°C

• 6x10^-6 /°C

• 24x10^-6 /°C

• 19x10^-6 /°C

What is the first step in the procedure for measuring the coefficient of linear expansion?

• Start the timer.

• Fill the steam generator with water.

• Measure the length of the iron rod.

• Attach the thermometer to the apparatus.

Why is it important to record the final temperature reading of the thermometer?

• To determine the initial length of the rod.

• To calculate the coefficient of linear expansion.

• To find the change in length.

• To calculate the error percentage.

What is the purpose of using a scientific calculator in this experiment?

• To measure the temperature.

• To calculate the coefficient of linear expansion.

• To time the experiment.

• To record the length of the rods.

What is the final step in the procedure for measuring the coefficient of linear expansion?

• Clean the apparatus used.

• Calculate the average temperature.

• Turn off the steam generator.

• Record the final length of the iron rod.

How does temperature affect the coefficient of linear expansion?

• It remains constant regardless of temperature.

• It increases with higher temperatures.

• It only affects gases, not solids.

• It decreases with higher temperatures.