What term refers to two or more simple machines used together like a bicycle?

What term refers to two or more simple machines used together like a bicycle?

• A. Simple Machine
• B. Compound Machine
• C. Temperature
• D. Thermal Energy

Answer: (B)

Two or more simple machines used together form a compound machine. A bicycle is a prime example: the wheels and axles reduce friction and enable smooth rolling, the pedals act as a lever to apply force and turn the crank, and the gear-and-chain system transmits and modifies that force to the wheels. Together, these simple machines work as one device, which is what makes it a compound machine. The other options don’t describe a system made from multiple simple machines or relate to heat rather than mechanics.

Two or more simple machines used together form a compound machine. A bicycle is a prime example: the wheels and axles reduce friction and enable smooth rolling, the pedals act as a lever to apply force and turn the crank, and the gear-and-chain system transmits and modifies that force to the wheels. Together, these simple machines work as one device, which is what makes it a compound machine. The other options don’t describe a system made from multiple simple machines or relate to heat rather than mechanics.