2023年AP考試新加坡考區開放報名,速搶考位!
2022年真是波折的一年,隨著疫情反復,國內不少城市的AP考試相繼取消。好多準備今年參加AP考試的學生不得不把計劃延至明年,甚至是其他城市。這也意味著,參加2023年AP考試的人數即將上漲,只有早做準備,才能備...
2022年真是波折的一年,隨著疫情反復,國內不少城市的AP考試相繼取消。好多準備今年參加AP考試的學生不得不把計劃延至明年,甚至是其他城市。這也意味著,參加2023年AP考試的人數即將上漲,只有早做準備,才能備...
Collisions - Multiple Collisions Can there be multiple collisions? After?two objects collide?it is possible that one (or both) of them?collides with something else?such as A?third object A?wall?(pe...
Collisions What is a direct collision? A?direct collision?is when two objects are travelling along the?same straight line?when they collide Before?the collision: One?of the objects could be?station...
Momentum What is momentum? Any object that has mass and is moving has?momentum Momentum?measures the quantity of motion that an object has Momentum is a?vector?quantity - so it has a?magnitude?and?...
Power What is power? Power is developed as an engine or machine does?work Power is the rate of doing work, usually by the?driving force?of an engine It is the same as?work done per second The work ...
Conservation of Energy What is conservation of energy? The?principle of conservation of mechanical energy?states that when a particle is moving and?no external forces?other than gravity act to do?w...
Kinetic Energy There are many different forms of energy including, but not limited to, heat energy, light energy, chemical energy and nuclear energy. In this course we deal with a type of energy ca...
Work What does the term work mean in Mechanics? In Mechanics the word work refers to the?work done?by a force when it causes an object to move Mechanical work happens when both a?force?is applied a...
Coefficient of Friction - Equilibrium How is friction used when a body is in equilibrium? When a body is in static equilibrium under the action of a number of forces, including friction, the value ...
Coefficient of Friction - Inclined Planes How is the coefficient of friction used in problems involving inclined planes? On an?inclined plane?the basic principles are the same as for?coefficient of...
Coefficient of Friction - F = ma How do we apply Newton’s Second Law (F = ma) in problems involving friction? The?coefficient of friction?combined with?F?=?ma?allows you to determine an object's mo...
Coefficient of Friction What is friction? Friction is a?force?between a surface and an object that acts to resist motion of the object across the surface On a horizontal surface with no forces acti...
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