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Table 6.7.1 lists some typical drag coefficients for a variety of objects. Notice that the drag coefficient is a dimensionless quantity. At highway speeds, over 50% of the power of a car is used to overcome air drag. The most fuel-efficient cruising speed is about 70–80 km/h (about 45–50 mi/h).
1. The document provides instruction on topics to cover for physics Form 3, including energy, work, power, machines, and finalizing Newton's laws of motion. 2. The chapter summarizes key concepts in linear motion including displacement, speed, velocity, acceleration, and motion under gravity.
Physics Form 3 Notes - Free download as PDF File (.pdf), Text File (.txt) or read online for free. This document provides an introduction to linear motion, including key concepts such as displacement, speed, velocity, acceleration, and motion under gravity.
CHAPTER THREE. NEWTON’S LAWS OF MOTION. Newton’s first law (law of inertia) This law states that “A body continues in its state of rest or uniform motion unless an unbalanced force acts on it”. The mass of a body is a measure of its inertia. Inertia is the property that keeps an object in its state of motion and resists any efforts to change it.
When a force acting on a body displaces the body in the direction of the force work is said to have been done. Work is the product of force and displacement in the direction of the force; Workdone= force F × displacement s. The SI Unit of work is newton-metre (Nm). 1Nm= 1joule (1J).
Form 3 Physics Revision quiz for 7th grade students. Find other quizzes for Physics and more on Quizizz for free!
This category contains Physics Form 3 notes as aggregated from the various high school approved text books, including KLB,etc. It covers the entire Physics form 3 syllabus, for the preparation of national and local exams.
