Listing all results (311)

Determining Dry Weight

This experiment is a continuation of Determining Doubling Time. Students create a standard curve of absorbance against yeast concentration, and use this to determine the concentration of yeast produced over time.The standard curve (dry mass, grams per litre) is generated from known concentrations of dried yeast in...
Publication date:
2000 - 2009

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Colourful Chemistry

Written by F.C. Brown and published by the English Universities Press, this book contains guidance on how to carry out a number of laboratory experiments in which colour plays an essential part. The activities look at extracting and using dyes, in making pigments, turning them into paints and using these paints....
Publication date:
1970 - 1979

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Episode 203: Turning Effects

This learning episode from the Institute of Physics, uses discussion and experimental work to help students investigate the application of moments beyond the simple 'see-saw' model. Activities lead to an application of moments to general equilibrium situations. Students look at: * moments and turning effects...
Publication date:
2000 - 2009

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Episode 205: Describing Motion

From the Institute of Physics, this episode introduces (or revises) the equations of motion. During a practical task, students undertake direct measurements to ensure that they understand the basic physics of velocity, distance and time. Activities help students to understand: • scalars and vectors, velocity and...
Publication date:
2000 - 2009

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Episode 206: Uniform and Non-uniform Acceleration

This learning episode, from the Institute of Physics, looks at basic kinematics and introduces the equations of motion for uniform acceleration. It involves practicing calculations and compares uniform with non-uniform acceleration. Activities look at: • non-uniform acceleration down a ramp • deriving the...
Publication date:
2000 - 2009

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Episode 207: Projectile Motion

This learning episode, from the Institute of Physics, looks at the independence of vertical and horizontal motion. The crucial concept is that vertical acceleration does not affect horizontal velocity. This explains all projectile motion. There are a range of activities which include: • demonstrating and...
Publication date:
2000 - 2009

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Episode 209: Drag, Air Resistance, Terminal Velocity

Produced by the Institute of Physics, this learning episode considers the forces acting on a falling body in air and moves on to related experimental work.The activities include:• demonstrating the motion of falling bodies• understanding upthrust• investigating air resistance using falling paper cup cake cases• the...
Publication date:
2000 - 2009

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Episode 211: Newton’s Second Law of Motion

Produced by the Institute of Physics, this learning episode explores Newton’s second law, F = ma. Using simple apparatus, students investigate this law and critically consider the limits of the experiment.The activities include:• revision of kinematics• investigating the relationship between acceleration and force•...
Publication date:
2000 - 2009

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Episode 214: Work Done by a Force

In this learning episode from the Institute of Physics, students tackle practical work looking at the efficiency of a ramp to think of force as a mechanism by which energy is transferred from one body to another. The activities include: • discussing students' current understanding of force, gravity, energy and...
Publication date:
2000 - 2009

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Episode 216: Energy Changes

This learning episode, from the Institute of Physics, looks at kinetic energy, work and velocity in relation to the braking distance of a vehicle. Two experiments are included, both of which connect work done in braking to the initial kinetic energy of the decelerating vehicle. The activities include: •...
Publication date:
2000 - 2009

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