machine

Everyday

1. A machine is a thing with moving parts that uses power to do a job, like a washing machine or a sewing machine. tree →
2. A machine is a device that sells or gives things: a vending machine, a ticket machine. tree →
3. In science, a simple machine (lever, pulley, wheel and axle, ramp, wedge, screw) makes work easier. tree →

In the lessons

In maths it is usually something that makes items at a rate: items per hour × hours; machines working together add their rates; a vending machine has a price per item. In science, simple machines help lift and move things. In safety: never put your hand inside a machine that is on, and keep loose hair and sleeves away.

Examples

• A machine makes 50 toys an hour. tree →
• How many toys in 6 hours? tree →
• Two machines work together. tree →
• A drink from the machine costs 2 dollars. tree →
• Put your dirty clothes in the washing machine. tree →
• A lever is a simple machine. tree →
• The ticket machine took my coins. tree →
• Robots are machines that can follow instructions. tree →
• Unplug the machine before you clean it. tree →
• Strange that he should think of this, which had never troubled him before; perhaps the sewing machine brought it to his mind. tree →

Note

Countable. Spelling: «machine», said «ma-sheen». Related words: «machinery» (machines in general, uncountable), «machinist». Maths: two machines for 6 hours make twice as many as one; machines together add rates, not times. Trap: more machines mean less time, not more.

In Jewish tradition

In maths it is usually something that makes items at a rate: items per hour × hours; machines working together add their rates; a vending machine has a price per item. In science, simple machines help lift and move things. In safety: never put your hand inside a machine that is on, and keep loose hair and sleeves away.

Note

Countable. Spelling: «machine», said «ma-sheen». Related words: «machinery» (machines in general, uncountable), «machinist». Maths: two machines for 6 hours make twice as many as one; machines together add rates, not times. Trap: more machines mean less time, not more.