HOOKE'S LAW Introduction In physics, Hooke's Law is one of the fundamental principles governing how objects deform under external forces . Named after the 17th-century British physicist Robert Hooke, this law provides a crucial understanding of the behavior of elastic materials, such as springs and rubber bands. Whether stretching a rubber band or compressing a spring, Hooke's Law helps explain what happens when forces act on these materials. What is Hooke's Law: Hooke's Law states that the force F needed to extend or compress a spring by some distance x is proportional to that distance. Mathematically, it is expressed as: F= -kx Here k represents the spring constant, which is the measure of the stiffness of the spring, and x is the displacement from the displacement position. The negative sign indicates that the force exerted by the spring is in the opposite direction of the displacement. Understanding the Spring Constant: The spring constant k is a critical co
READING COMPREHENSION Test One Passage #01: When used for studies of learning and memory, the octopus is more interesting subject than the squid. Unlike the free-swimming squid which relies exclusively on its eyes to guide it to tasty fish or crab, the octopus often feed off the bottom of the sea. It uses not only its eyes but also its tentacles to identify a likely meal. The brain of the octopus has two separate memory storage areas one for visual memory and one for tactile memory. 1. How does the squid find its food? a. By sight b. By touch only c. Both a and b d. None of these 2. According to the passage, which of the following can describe the octopus a. Its brain is simpler than that of squid b. It cannot touch and look at the same time c. Its brain does not function very well d. The memory of what it has seen and touched is contained in separate areas. 3. The passage is mainly about a. A new way of feeding fish. b. Biological Difference between two an