circuit

Everyday

1. An electrical circuit is a complete loop of wires and parts that electricity flows round, from the power source and back again. tree →
2. A circuit is a route or track that goes round in a loop, like a racing circuit. tree →
3. A circuit is one trip round such a loop. tree →
4. Circuit training is exercise where you go round a set of different activities. tree →

In the lessons

In science, a simple circuit has a battery (cell), wires and a bulb, buzzer or motor; the circuit must be complete (closed) for electricity to flow; a switch opens or closes it. A series circuit has one path; a parallel circuit has more than one. Symbols are used in circuit diagrams. In PE, circuits are rounds of exercises. Phrases: «complete circuit», «open/closed circuit», «short circuit», «circuit diagram», «series circuit», «parallel circuit».

Examples

• The bulb lights up only when the circuit is complete. tree →
• Draw a circuit diagram with a cell, a switch and a bulb. tree →
• If you open the switch, the circuit is broken. tree →
• We ran three circuits of the field. tree →
• The racing cars sped round the circuit. tree →
• In PE we did circuit training. tree →
• A short circuit can start a fire. tree →
• Never make circuits with mains electricity; only use batteries. tree →

Note

Plural circuits. The «ui» sounds like «i»: «SUR-kit». In science, a gap anywhere stops the whole series circuit. Mains electricity from the wall is dangerous; school circuits use low-voltage batteries.

In Jewish tradition

Interpretation: Samuel travelled in a yearly circuit to judge the people at several towns. Tradition sees it as a model of a leader who goes to the people to bring justice. In the primary lessons: In science, a simple circuit has a battery (cell), wires and a bulb, buzzer or motor; the circuit must be complete (closed) for electricity to flow; a switch opens or closes it. A series circuit has one path; a parallel circuit has more than one. Symbols are used in circuit diagrams. In PE, circuits are rounds of exercises. Phrases: «complete circuit», «open/closed circuit», «short circuit», «circuit diagram», «series circuit», «parallel circuit».

Examples

• Thick clouds are a covering to Him, that He seeth not; and He walketh in the circuit of heaven.' (Writings JOB.22.14, JPS 1917) tree →
• And he went from year to year in circuit to Beth-el, and Gilgal, and Mizpah; and he judged Israel in all those places. (Prophets 1SA.7.16, JPS 1917) tree →
• And when David inquired of the LORD, He said: 'Thou shalt not go up; make a circuit behind them, and come upon them over against the mulberry-trees. (Prophets 2SA.5.23, JPS 1917) tree →

Note

Plural circuits. The «ui» sounds like «i»: «SUR-kit». In science, a gap anywhere stops the whole series circuit. Mains electricity from the wall is dangerous; school circuits use low-voltage batteries.