Question 1: What is the formula for density?

Answer: Density = Mass / Volume

Question 2: Which of the following statements about pressure is true?

Answer: Pressure is force per unit area.

Question 3: How does increasing the volume of a substance affect its density, assuming mass remains constant?

Answer: Density decreases.

Question 4: Is the statement 'Pressure is dependent on the area over which a force is applied' true or false?

Answer: True

Question 5: Is the statement 'Density can be measured in kilograms per liter' true or false?

Answer: True

Question 6: Explain how pressure changes with depth in a fluid.

Answer: Pressure increases with depth due to the weight of the fluid above.

Question 7: Define density in your own words.

Answer: Density is the mass of a substance per unit volume.

Question 8: Describe a real-world application where understanding pressure is crucial.

Answer: Understanding pressure is crucial in designing dams, as the pressure of water increases with depth and needs to be managed to prevent structural failure.

Question 9: Calculate the density of a block with a mass of 300 kg and a volume of 0.5 cubic meters. Use the formula Density = Mass / Volume.

Answer: 600 kg/m³

Question 10: Match the following terms to their definitions:

Answer: See full answer key

Question 11: Order the steps of measuring the density of an irregularly shaped object using water displacement.

Answer: See full answer key

Question 12: Fill in the blank: The pressure at a point in a fluid at rest depends on the fluid's ________ and the depth of that point.

Answer: density

Question 13: Discuss the factors affecting pressure in gases and how changes in these factors can influence weather patterns.

Answer: Pressure in gases is affected by temperature, volume, and the number of gas molecules. An increase in temperature raises pressure if volume is constant. Decreasing volume increases pressure if temperature is constant. These changes influence weather patterns by affecting wind speed and direction, leading to phenomena such as high and low-pressure systems.