Newton’s First Law is also called:, Law of Acceleration, Law of Inertia, Law of Energy, Law of Action and Reaction, In the equation F = ma, the symbol “m” represents:, Motion, Momentum, Mass, Meter, Kinetic energy depends on:, Mass and height, Force and displacement, Spring constant and distance, Mass and speed, In a free-body diagram, the first step is to:, Resolve forces, Apply Newton’s Second Law, Isolate the object of interest, Calculate energy, A 5 kg object has an acceleration of 3 m/s². What is the net force acting on it?, 8 N, 15 N, 2 N, 30 N, A roller coaster cart has a mass of 500 kg and is at a height of 60 m. Taking g = 9.8 m/s², what is its potential energy?, 29,400 J, 294,000 J, 3,000 J, 500,000 J, Which of the following best describes conservation of energy?, Energy can be created when needed, Energy can disappear during motion, Energy cannot be created or destroyed, only transformed, Energy is always equal to force, If the net force on an object is zero, the object:, Must be accelerating, Must be moving in a circle, Remains at rest or moves with constant velocity, Must stop immediately, A spring with spring constant k = 200 N/m is stretched by 0.05 m. What is the restoring force?, 4 N, 10 N, 200 N, 0.25 N, A 500 kg roller coaster cart starts from rest at a height of 60 m. Ignoring friction, what is its approximate speed when it reaches a height of 56 m? Take g = 9.8 m/s²., 4.4 m/s, 8.9 m/s, 12.5 m/s, 19.6 m/s

Day 2

от
Печать
Внедрить

Таблица лидеров

Визуальный стиль

Параметры

Переключить шаблон

Восстановить автоматически сохраненное: ?