Long Response Questions | Chapter 9 | Nature Of Science & Physics | 9th Physics | NBF | FBISE скачать в хорошем качестве

Long Response Questions | Chapter 9 | Nature Of Science & Physics | 9th Physics | NBF | FBISE

Click on the link below for latest videos. https://whatsapp.com/channel/0029VaGr... (i) What is the best definition of the term “theory”, as it is used in science? (a) A theory is a guess or hunch about something that has occurred in nature. (b) A theory is a comprehensive set of ideas explaining a phenomenon in nature. (c) A theory is based on verifiable laws and can be proven true (d) A theory is a hypothesis that uses laws and observation to make an assumption. (ii) Which statement below correctly identifies the difference between laws and theories? (a) Laws describe phenomena, while theories explain why phenomena exist. (b) Laws are a statement of fact, while theories are a statement of opinion. (c) Laws explain why phenomena exist, while theories explain how. (d) Laws are a prediction of phenomena, while theories are an explanation. (iii) Why do scientists develop a hypothesis before conducting research? (a) It gives them direction on how to interpret the results of their research. (b) It helps to predict outcomes and define the parameters of the research. (c) Hypotheses give the researcher an outcome to shape their work around. (d) Hypothesis help a researcher decide which observations to record and which to ignore. (iv) The branch of Physics that is most important when studying how glasses help people see: (a) Thermodynamics (b) Electromagnetism (c) Mechanics (d) Optics (v) When studying how air conditioners cool your house, then it is: (a) Thermodynamics (b) Electromagnetism (c) Nuclear Physics (d) Optics (vi) The branch of Physics that deals with the particles such as neutrons and protons: (a) Solid state Physics (b) Plasma Physics (c) Electricity (d) Nuclear Physics (vii) Which branch of science plays an important role in engineering? (a) Biology (b) Chemistry (c) Physics (d) Genetics (viii) Physics is one of the branches of: (a) Physical sciences (b) Biological sciences (c) Social science (d) Life sciences (i) Define the following branches of physics: Biophysics, Astrophysics, Optics, Relativistic Mechanics, Nuclear Physics, Acoustics, Computational Physics (ii) Define the term theory and law. Also give two examples of each. (iii) Define hypothesis? (iv) What is the difference between classical mechanics and quantum mechanics? (v) What determines the validity of a theory? (vi) Which part of the study is not handled by the classical study of physics?