A 20 N Ball and a 40 N Ball Are

question 22

Multiple Choice

A 20 N ball and a 40 N ball are dropped at the same time from a height of 10 meters. Air resistance is negligible. Which of the following statements is accurate?

• A) After 1 second has elapsed, both balls have the same kinetic energy, since they have the same acceleration.
• B) The heavy ball has a greater acceleration and falls faster.
• C) Both balls hit the ground at the same time but gravity does more work on the heavy ball than on the light ball.
• D) The light ball has a greater speed, since it can accelerate faster than the heavy ball.

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Definitions:

Flagella

Long, lash-like appendages that protrude from the cell body of certain cells and are used for locomotion.

Cell Movement

The ability of cells to locomote or change position, often critical for processes such as development, wound healing, and the immune response.

Biology

The scientific study of life and living organisms, including their structure, function, growth, evolution, and distribution.

Natural Selection

The mechanism of evolution proposed by Charles Darwin; the tendency of organisms that have favorable adaptations to their environment to survive and become the parents of the next generation. Evolution occurs when natural selection results in changes in allele frequencies in a population. Compare with artificial selection.