# Elementary Science for Pupil Teachers: Physics Section

1907 - 183 σελίδες

### Τι λένε οι χρήστες -Σύνταξη κριτικής

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### Δημοφιλή αποσπάσματα

Σελίδα 76 - It states that at any given temperature, the volume of a given mass of gas varies inversely as the pressure to which it is subjected.
Σελίδα 80 - It overcomes the attractive forces that tend to hold the molecules of a substance together, and thus changes it from a solid to a liquid or from a liquid to a gas, according to the state it was in when the heat was applied.
Σελίδα 16 - In the bottom row, there are b such squares ; and, since there are a rows, we have b squares repeated a times, which gives, in all, ab squares.
Σελίδα 20 - ... is equal to the sum of the areas of the squares on the other two sides.
Σελίδα 40 - The specific gravity of a substance is the ratio of the weight of the substance to the weight of the...
Σελίδα 176 - Weight. — The weight of a body is the force with which the earth attracts it, in accordance with the law of gravitation.
Σελίδα 175 - Specific Gravity The ratio of the weight of any volume of a substance to the weight of an equal volume of another substance taken as standard at a constant or stated temperature.
Σελίδα 16 - IN the measurement of the extent of the surface of a body, or its area, the unit used is the area of a square each side of which is of unit length.