Welcome to the GCSE Physics Ninja Mass & Forces course.

These video lessons are based on question-and-answer flashcards. You can either make your own or purchase the printable flashcards from the shop.

All flashcards are relevant to GCSE, IGCSE (CIE and EdExcel), and IB unless indicated.

What will I learn in this course?

When you have completed this course, you will be able to…

• Understand the difference between mass and weight.
• Explain the effects of forces.
• Calculate the resultant force on an object.
• Use Newton’s laws to analyse the motion of an object subjected to forces.
• Explain the effect of friction forces on falling bodies.
• Understand the factors affecting stopping distance.
• Interpret force – extension graphs for different materials
• Calculate extension of a spring using Hooke’s Law.
• Explain the difference between elastic and plastic deformation.
• Understand the term centre of mass and use it to determine the stability of objects.
• Explain and calculate the moment due to a force.
• Become familiar with the idea of momentum and its conservation.
• Be able to use impulse to calculate forces and time of impact.
• Explain how a force can cause pressure and perform calculations.
• Calculate pressure vs. depth in liquids.
• Use the idea of particles to describe how a gas exerts a pressure on the walls of a container.
• Understand how machines that use pressure can be force multipliers.