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 Self-study – by topic
 Virtual tutor – by problem

Get prepared for the IB exams:

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Topics

Virtual tutorSee all 78 networks

A digital guide to the process of problem solving which highlights strengths and weaknesses, explains mistakes, reminds you about definitions and helps to clarify concepts. Check out our Introductory network to see it in action.

Preview

Explanation 1

When a car accelerates why does a helium balloon move backwards?

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Topics: Gases, Gravity, Forces, Mechanics
Skills: Analytical Skills
Levels: All, Hard
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Circular motion 4

How fast does a pig fly?

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Topics: Centripetal force, Circular motion, Vectors
Skills: Rearranging equations, Calculating a value, Analytical Skills
Levels: All, Hard
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Oscillations 3

What is the frequency of oscillation when a mass hangs on a spring?

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Topics: Mass on a spring, Oscillations
Skills: Rearranging equations, Calculating a value, Analytical Skills
Levels: All, Easy
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Gravity 3

How far away are TV satellites?

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Topics: Orbits, Gravity, Centripetal force, Circular motion
Skills: Rearranging equations, Calculating a value, Analytical Skills
Levels: All, Easy

Hot pages

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    Before we can model motion we need to define the quantities that we are going to use, once that has been done we can investigate how they are related.

  • Distance and displacementMechanics

    Displacement as a vector, adding perpendicular displacements using pythagorus

  • Velocity and speedMechanics

    What is the difference between velocity and speed? When do we use instantaneous velocity and average velocity?

  • ForcesMechanics

    In an attempt to simplify we can consider all bodies to be a like a small ball with forces acting at the centre. Alternatively we could just consider the case of a small ball and ignore all other possibilities.

  • UnitsBasics

    There are 6 fundamental units we will use (not the candle) and a whole load of derived ones.