Practice Quiz

NAEP Science Grade 12

Category - Science

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When a cork is added to a glass of water, the cork floats at the top of the water instead of sinking to the bottom of the glass. Which statement helps explain why this happens?
  1. The cork absorbs the water, so it cannot sink.
  2. The water is exerting an upward force on the cork.
  3. The water stops the force of gravity from acting on the cork.
  4. The density of the cork is greater than that of the water.
Explanation
Answer: B - The water is exerting an upward force on the cork.
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