Which of the following statements is INCORRECT?
A. A force can be invisible.
B. A force is a push or pull.
C. A force always causes movements.
D. A force is required to do work.
Answer:C
Which of the following statements is INCORRECT?
A. A force can be invisible. B. A force is a push or pull. C. A force always causes movements. D. A force is required to do work.