Class practical: Comparing the energy stored by two rubber bands.
Demonstration: Introducing the concept of conservation of energy and a definition of the joule.
Class practical: Considering the energy stored in foodstuffs and the energy demanded by human activity.
Demonstration: Using a dynamics trolley on a steep ramp, where the energy transfer is not easily measured.
Demonstration: To move along a horizontal plane there is no net change to the way energy is stored.
Demonstration: Students ‘experience’ forces and reinforce their understanding of force and energy units.
Class practical: Measuring the gravitational potential energy transferred to kinetic (motion) energy with a dynamics trolley.
Demonstration: Collisions between trolleys that result in energy being dissipated to the surroundings.
Demonstration: An electric motor lifts a load.
Including simple sums about energy and power is very important. It introduces the units that are in practical use, without...
Here you can impart an idea of the relative values of different efficiencies. Having such an idea for different devices and...
Practical measurements and calculations as exemplars to learn from. In this activity a motor is used to lift a load.
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