IB Physics Glossary
Browse the glossary using this index
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Half-life | |
Half-value thickness | |
Heat exchangerallows the nuclear reactions to occur in a place that is sealed off from the rest of the environment. The reactions increase the temperature in the core. This thermal energy is transferred to heat water, and the steam that is produced turns the turbines. | |
Hubble's law | |
Hybrid vehiclesuse electric motors with a petrol engine as back-up to provide additional power when necessary. Sophisticated computerized systems switch from the electric motor to the petrol engine and back as required. | |