Is a tractor like a plow?

No, a tractor is nothing like a plow. Tractors are used to pull plows, they are the horse-power or physical power that is needed to be used to "help" a plow do its job, which is turning over the earth to let the soil fall on top. The plow is a machinery implement; the tractor is a power source to pull such implements. Tractors are also used to pull and/or operate other implements, such as balers, pull-type combine harvesters, mowers, hay rakes, hay bines, disk, cultivators, harrows, fertilizer wagons, silage wagons, pull-type forage harvesters, bale shredders, etc. Many tractors can be fitted with a front-end loader that can be used to pick up and carry bales of straw or hay to feed livestock, or to carry a bucket-full of silage to feed cattle.