Question: Q: Are the joints between the vertebrae contained in your backbone fully movable, partially movable, or unmovable? Choices: - none of these - unmovable - fully movable - partially movable A:
Answer: partially movable

Question: Q: What type of force exists between two touching surfaces? Choices: - opposing - centrifugal - tension - friction A:
Answer: friction

Question: Q: If a ball is released from rest when air resistance is negligible, velocity is seen to increase linearly, while what related property is a constant? Choices: - time - speed - density - acceleration A:
Answer:
acceleration