Courses
Teacher-curated, self-paced courses. Looking for a guided sequence through a full topic? See Learning Paths.
3 courses
Vectors: Adding, Subtracting and Resolving
Physics · High School (11–12) · Vectors and Motion in a Plane
FreeCh 3 · 1/4
You walk 3 km east and then 4 km north. How far are you from the start? The answer is 5 km, and not 7 km. In this course we learn why. We separate scalars from vectors, we add and subtract vectors with arrows and with numbers, and we split any vector into two parts along the axes, which makes hard problems easy.
3Lessons12Problems2Python Labs1Question Set1Mock Test
Motion in a Plane: Velocity, Acceleration and Relative Motion
Physics · High School (11–12) · Vectors and Motion in a Plane, Relative Motion
FreeCh 3 · 2/4
A boat that points straight across a river does not land straight across. In this course we describe the position, velocity and acceleration of a body that moves in a plane, we find that the two directions of motion do not disturb each other, and we use the relative velocity to solve problems about boats in rivers, rain and an umbrella, and aeroplanes in the wind.
3Lessons12Problems2Python Labs1Question Set1Mock Test
Projectile Motion and Circular Motion
Physics · High School (11–12) · Vectors and Motion in a Plane, Circular Motion
FreeCh 3 · 3/4
A ball thrown at an angle goes up and down and forward at the same time. A stone on a string keeps its speed, and still it is accelerating. In this course we study the path, the time, the height and the range of a projectile, and we find the acceleration of a body in uniform circular motion, which points to the centre of the circle.
3Lessons12Problems3Python Labs1Question Set1Mock Test
Slopes, Chases and Changing Speed: Plane Motion Pushed Further
Physics · High School (11–12) · Vectors and Motion in a Plane
StandardFirst lesson freeExtra course
A ball thrown up a hill lands somewhere new, and a ball thrown from a moving lorry follows two paths at once. Here you handle throws on slopes and from moving platforms, and you find the farthest point that any throw can reach. You follow two ships to see how close they come, and you describe a car that speeds up on a bend. The problems are at the level of JEE, A-Level Physics and IB Higher Level, with a long timed paper.
3Lessons12Problems2Python Labs1Question Set1Mock Test
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