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Questions and Answers
Which of the following is the SI unit of force?
Which of the following is the SI unit of force?
- A. m/s
- D. kg m2/s2
- B. kg m/s
- C. kg m/s2 (correct)
Which of the following BEST represents force?
Which of the following BEST represents force?
- B. a push or a pull always causing motion
- C. a push or a pull acting without an object
- D. a push or a pull acting on an object (correct)
- A. a push or a pull always causing acceleration
Which of the following ALWAYS causes change in speed, direction, or both?
Which of the following ALWAYS causes change in speed, direction, or both?
- C. either balanced or unbalanced forces
- A. balanced forces
- B. unbalanced forces (correct)
- D. any combination of forces
What is a force that opposes motion between two surfaces that are in contact?
What is a force that opposes motion between two surfaces that are in contact?
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Which is an example of friction that is helpful?
Which is an example of friction that is helpful?
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