Photo AI
(iii) Which diagram shows the direction of the forces from the water on the inside of the tank? (b) Figure 3 shows three containers A, B, and C - Edexcel - GCSE Physics - Question 3 - 2016 - Paper 1
Question 3
(iii) Which diagram shows the direction of the forces from the water on the inside of the tank? (b) Figure 3 shows three containers A, B, and C. Each container con... show full transcript
Worked Solution & Example Answer:(iii) Which diagram shows the direction of the forces from the water on the inside of the tank? (b) Figure 3 shows three containers A, B, and C - Edexcel - GCSE Physics - Question 3 - 2016 - Paper 1
Step 1
Which diagram shows the direction of the forces from the water on the inside of the tank?
Answer
To determine the correct diagram, we need to understand how forces act on the walls of the tank due to the contained water.
For a tank containing water, the force due to the water exerts pressure on the walls, acting horizontally inwards. The correct diagram will show arrows indicating this inward pressure.
By reviewing the diagrams A, B, C, and D:
- Diagram A: Shows arrows both downwards and upwards, which does not represent this force.
- Diagram B: Shows arrows directed inwards, demonstrating the pressure exerted by the liquid on the walls.
- Diagram C: Represents arrows only directed sideways, missing the direction of pressure.
- Diagram D: Shows outward arrows, which is not the correct representation of force exerted by water.
Thus, the correct answer is Diagram B, which indicates the direction of the forces accurately.
Step 2
Figure 3 shows three containers A, B, and C.
Answer
Each container shows different states of liquid:
- Container A: Contains water and mineral oil where the mineral oil floats above the water.
- Container B: Shows a layered approach where the water is beneath another liquid (mineral oil), maintaining the same principle that the less dense liquid (oil) floats above the denser liquid (water).
- Container C: Primarily contains water with no oil visible.
This setup allows for a comparative analysis of the behavior of liquids with different densities.