Siti inverted a plastic cup with a small hole at the bottom and pushed it vertically into a basin of water. She noticed that the water level inside the cup rose slightly. Which of the following explains this?
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Worked Solution
Step 1: Identify that air occupies space inside the cup.
Step 2: When pushed into water, the hole allows air to leave the cup.
Step 3: As air leaves, water enters to take up the space previously occupied by air.
Step 4: This explains why the water level rose significantly.
Correct answer: Air occupies space and escaped through the hole.
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