energy
part of speech
noun (energy, energies)
meaning for a pupil
1) The strength and liveliness to be active: "I have lots of energy." tree →
2) In science, what is needed to make things move, heat up, light up or change. tree →
3) Power from fuel, electricity, the sun or wind: "solar energy". tree →
sense in the lessons
In science, energy comes in forms (heat, light, sound, movement, electrical, stored chemical energy in food and fuel); it cannot be made or destroyed, only changed from one form to another. Food gives our bodies energy. Renewable energy (sun, wind, water) won't run out. Phrases: save energy, solar energy, energy drink, full of energy, renewable energy.
examples
- Food gives us energy. tree →
- The kids are full of energy. tree →
- Solar panels turn sunlight into energy. tree →
- Turn off lights to save energy. tree →
- A moving car has energy. tree →
- Wind energy is renewable. tree →
- I had no energy after the long walk. tree →
- Plants get energy from the Sun. tree →
- Still, she was full of courage and energy, and determined that, one way or another, her husband should be saved. tree →
note
Plural "energies" is rare. Energy is measured in joules or calories (food). "Energy drinks" are not good for children. Energy is not "used up" in science — it changes form, often into heat.
In the corpora
- There is rent or a mortgage, energy for heating and hot water, council tax, broadband and insurance.
- Energy bills pay for gas and electricity, and their prices rise and fall with world events.
- Hot water costs energy to heat, so long showers cost money and leave less for the next person.
- Small models use far less energy than very big ones, which is one reason small models are worth making.
- Dolphins ride the waves made by boats and whales, which saves energy and seems to be fun for them.
Trees and pragmatics
Every meaning and example of «energy» parsed by Mova, each sentence with its dependency tree and frames.