Operation of a machine/device
​​Online exercise

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​Exercise  2
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How does a toaster work?

How does a toaster work?

Fill in the gaps with the following words:
*** hot - temperature - off - electricity - bread - heat - grates ***


A toaster is designed to heat the sides of a slice of for the right amount of time, turning the slice of bread into toast.

provides the energy that the toaster needs. When electric current flows through the coils of wire inside the toaster, they become so that they glow red. These glowing red wires are called heating elements. The filaments beam toward the bread.

Many toasters include a pair of grates on either side of the slot. The press against the bread and center it.

The thermostat will heat up as the bread cooks and the metals will expand, so the thermostat will gradually bend into a curve. When the right is reached, it will bend enough to snap open and switch the toaster’s heating element.