## Listing all results (311)

### Episode 220: Momentum and its Conservation

Produced by the Institute of Physics, this learning episode introduces the concepts of momentum and its conservation.

A series of activities include:
• an introduction to the conservation of momentum
• investigating the conservation of momentum
• application of the conservation of momentum...

### Episode 221: Elastic Collisions

From the Institute of Physics, this learning episode extends the idea of conservation of momentum into elastic collisions, in which, because kinetic energy (KE) is conserved. Useful information can also be found by calculating the changes in KE of the colliding objects.

The activities include:
•...

### Episode 227: Hooke’s Law

In this learning episode from the Institute of Physics, students use Hooke's law to demonstrate the strength and stiffness of materials when subject to linear tensile or compressive forces.

The activities include:
• recap of Hooke's law
• explaining tension and extension in a variety of...

### Episode 228: The Young Modulus

Produced by the Institute of Physics, in this learning episode students measure the Young modulus.

Through a range of discussions, questions and student investigations, activities look at:
• defining the Young modulus
• measuring the Young modulus of a material
• measuring the stiffness of...

### Episode 104: Drift Velocity

From the Institute of Physics, this learning episode shows that charge carriers in good conductors usually move very slowly. It illustrates the derivation and use of the equation I = nAvq.

A range of activities include:
• viewing the movement of permanganate ions in an electric field
•...

### Episode 107: Preparation for Resistance Topic

This series of activities, from the Institute of Physics, help student to understand electrical resistance. What is resistance, how it can be measured, how it arises and what affects it? During the topic, resistance is related to current, voltage, type of material, temperature and light intensity. The electrical...

### Episode 108: Resistance

From the Institute of Physics, this learning episode provides a quantitative definition for resistance (R = V / I) which reinforces the qualitative notion that more resistance means less current. It looks at Ohm’s law, describing that this is not the same thing as the definition of resistance.

Activities...

### Episode 109: Electrical Characteristics

Produced by the Institute of Physics, in this practical investigation students measure the current and voltage characteristics for several components and identify ohmic and non-ohmic behaviour.

Students determine the V-I characteristics for:
• a carbon resistor
• semiconductor diode
• a...

### Episode 121: Electromotive Force and Internal Resistance

In this learning episode, from the Institute of Physics, students derive the equation relating electromotive force (emf), terminal potential difference, current and internal resistance. They then tackle questions about the internal resistance of a power supply.

The activities include:
• deriving the...

### Episode 122: Using an Oscilloscope

This demonstration or student practical activity, from the Institute of Physics, helps students learn to use an oscilloscope to measure voltages. It helps students to understand the use of a cathode ray oscilloscope by showing:
• how the oscilloscope plots a graph of voltage (y-axis) against time (x-axis)...