Sample test questions about pulleys, gears and levers are available from Psychometric Success, Education.com and Mechanical Aptitude Tests. Most of these questions are geared towards students studying for the Armed Services Vocational Aptitude Battery and similar exams for members of the police and fire services and other technical fields.
Sample questions about pulleys, gears and levers typically cover basic physic concepts, such as different types of energy. Important forces covered in sample questions include friction, compression, tension and gravity, as well as related concepts, such as magnitude, direction, acceleration and velocity. Most questions are focused on a practical understanding of the physics involved, rather than the theoretical framework.Learn More
Albert Einstein is famous for his contributions to science, particularly his general and special theories of relativity. He also won the Nobel Prize for discovering the law of the photoelectric effect.Full Answer >
Nuclear fission was discovered in 1938 by two German scientists, Otto Hahn and Fritz Strassmann. In 1939, it was explained theoretically by Lise Meitner and Otto Robert Frisch.Full Answer >
Matter made up of a single kind of atom is referred to as an element. Atoms are defined as the smallest particles of a given element that still express the element's chemical signatures.Full Answer >
Moore's law is an empirical law, meaning that it was derived from observation rather than from general principle and therefore doesn't seem to be driven by a single underlying force. According to Mooreslaw.org, the law was first articulated by Intel co-founder Gordon Moore and states that the number of processing elements that can be fitted onto a chip at a given cost roughly doubles every year.Full Answer >