Problemas
What simple machines combine to make a shovel which is a compound machine? A. wheel and axle and lever B. lever and pulley C. inclined plane and wheel and axle D. wedge and lever
Roztwór
Acacio
maestro · Tutor durante 5 años
4.4
(258 Votos)
Respuesta
D
Explicación
## Step 1A shovel is a compound machine, meaning it is made up of two or more simple machines. Simple machines are the simplest form of a machine that can perform a specific task. They include the wheel and axle, lever, pulley, inclined plane, and wedge.## Step 2In the case of a shovel, the handle acts as a lever, which is a simple machine that allows you to apply a small force over a long distance to move a heavy object over a short distance. The blade of the shovel, on the other hand, acts as a wedge, which is a simple machine that is used to separate two objects or portions of a substance.## Step 3Therefore, the combination of a lever and a wedge forms a compound machine, which in this case is a shovel.