Question: Answer the following question given this paragraph: Partly movable joints allow only a little movement. Your backbone has partly movable joints between the vertebrae ( Figure below ). 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: Answer the following question given this paragraph: Friction is the force that resists motion. In most beginning physics classes, friction is ignored. Concepts can be understood and calculations made assuming friction to be nonexistent. Whenever physics intersects with the real world, however, friction must be taken into account. Friction exists between two touching surfaces because even the smoothest looking surface is quite rough on a microscopic scale. Q: What type of force exists between two touching surfaces? Choices: - opposing - centrifugal - tension - friction A:
Answer: friction

Question: Answer the following question given this paragraph: Figure 2.43 Positions and velocities of a metal ball released from rest when air resistance is negligible. Velocity is seen to increase linearly with time while displacement increases with time squared. Acceleration is a constant and is equal to gravitational acceleration. 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