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**Additional Science****Additional Science Videos Physics Unit 2**

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**### Forces, Motion and Energy

#### Resultant Forces

In this video you will learn about forces and how they can interact with each other and affect the motion of objects. You will also learn about acceleration, deceleration and moving at steady speed.

Login / Subscribe#### Distance-Time Graphs

This video shows you how to **interpret distance vs time graphs** and also how to calculate speed from a distance vs time graph. This video includes content for the higher tier GCSE Science exam. If you have subscribed to **Revision Plus**, the questions for this are combine with questions for velocity time graphs.

#### Velocity-Time Graphs

In this video you will learn how to interpret **velocity-time** graphs and how to calculate **acceleration** using the correct equation and also the correct units. The questions you learn to answer will be from a graph, free text or from a table.

#### Using Velocity-Time Graphs

In this video you learn how to calculate **acceleration** from **velocity-time graphs** and the distance travelled. This video contains higher tier content for the AQA GCSE GCSE Physics exam for unit two.

#### Calculating Acceleration

This video explains how to calculate acceleration using two different equations.

Login / Subscribe#### Terminal Velocity

This video explains how the forces interact for a falling object, whether it is falling in air or in a liquid. It explains why falling objects reach a terminal velocity. The example that is used is that of a parachutist.

Login / Subscribe#### Forces on Elastic Objects

In this video you will learn that for an object that is able to recover its original shape, **elastic potential energy** is stored in the object when **work** is done on the object to change its shape.

#### Work and Power

In this video you learn about the keyword **'work'** and **'power'.** You also learn how to use the equations for each of these measurements and you can try out a couple of examples.

#### Gravitational and Kinetic Energy

This video explains what **gravitational potential energy** is and what** kinetic energy** is and shows you how to use the two equations that work out these measurements.

#### Weight

This video explains the difference between **weight** and **mass** and how you can calculate the **weight** of an object using an equation which will be given to you in the exam.

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