Question

exam lesson name: energy conversions
exam number: 700697rr
▶ exam guidelines
▶ exam instructions

question 6 of 20 :
select the best answer for the question.

1. within an internal combustion engine, the can - shaped component that moves up and down the cylinder and is the main moving part in

the engine is the

○ a. piston.
○ b. connecting rod.
○ c. spark plug.
○ d. crankshaft.

□ mark for review (will be highlighted on the review page)

Explanation:

To solve this, we analyze each option:

• Option A: A piston in an internal combustion engine is a can - shaped component that moves up and down the cylinder and is the main moving part.
• Option B: A connecting rod connects the piston to the crankshaft and is not the main moving part that moves up and down the cylinder in the same way as the piston.
• Option C: A spark plug is used to ignite the fuel - air mixture and does not move up and down the cylinder.
• Option D: A crankshaft converts the reciprocating motion of the piston into rotational motion and is not the component that moves up and down the cylinder.

Answer:

A. piston.