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FCAT Grade 8 Science Assessment Practice Questions

Category - FCAT Science Assessment Grade 8

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Alex is calculating the possible path of a baseball after it is hit, but he is doing the vector math all wrong! Which of the following rules is not correct, and could be the one Alex is using incorrectly?
  1. Two vectors can be added together.
  2. Two vectors can be multiplied together.
  3. A vector and a scalar can be multiplied together.
  4. A vector can be subtracted from another vector.
  5. A vector and a scalar cannot be subtracted from one another.
Explanation
Answer: B - Two vectors cannot be multiplied together, although there are forms of vector multiplication called the cross product or dot product. However, these products are not multiplication in a direct sense.
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