No, IQ is not a memory test. IQ, or Intelligence Quotient, is an assessment of an individual's general cognitive abilities in comparison to the cognitive abilities of others of the same age group. It is used to measure a person's capacity for problem-solving, abstract reasoning, and other higher-level intellectual tasks. IQ tests usually consist of a variety of questions that measure a person's aptitude in specific areas, such as logic, mathematics, language, and spatial reasoning. Memory is only one component of an IQ test, and not the primary focus.
IQ tests are designed to measure an individual's intellectual potential, so they are not designed to measure existing knowledge. While a person's memory can play a role in how well they perform on an IQ test, it is not the main focus. In fact, a person's memory does not necessarily correlate with their IQ score. A person with a higher IQ may not score as well on a memory test, and vice versa.
IQ tests are just one way of measuring a person's intelligence; it is not the only way. Other measures, such as aptitude tests and personality tests, can also be used to gain insights into an individual's cognitive abilities. Ultimately, the best way to assess an individual's intelligence is to look at the individual's overall performance in a variety of areas.