Answer: Speed is the distance travelled per unit time, while velocity is the speed of an object in a specific direction. In other words, velocity includes a direction component while speed does not.

1. What is the difference between speed and velocity?
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Answer: An acid is a substance that produces hydrogen ions (H+) in water solutions, while a base is a substance that produces hydroxide ions (OH-) in water solutions. Acids have a pH value less than 7, while bases have a pH value greater than 7.

2. What is the difference between an acid and a base?
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Answer: The three states of matter are solid, liquid, and gas. Solids have a fixed shape and volume, liquids have a fixed volume but take the shape of their container, and gases have neither a fixed shape nor volume and will expand to fill their container.

3. What are the three states of matter and how do they differ?

Answer: A cell is the basic unit of life. Some of the different types of cells include prokaryotic cells which are cells without a nucleus (bacteria), as well as eukaryotic cells which are cells with a nucleus (animal and plant cells).

4. What is a cell and what are the different types of cells

Answer: Potential energy is the energy an object has due to its position or configuration. When an object moves, this potential energy can be converted to kinetic energy, the energy of motion. As the object moves, the potential energy decreases and the kinetic energy increases.

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Introduction to Anatomy and Physiology: Structure, Function, and Organ Systems