Discuss how energy conservation applies to a swinging pendulum. Where is potential energy the most? Where is it the least? Where is kinetic energy the most? Where is it the least? Where is the pendulum bob moving fastest? Where is it the slowest?
What will be an ideal response?
Question 2
At the edge of a cliff you throw one ball downward and another ball upward at the same speed. Which will hit the ground faster? Does direction of the thrown ball make a difference? Explain.
What will be an ideal response?
Question 3
A 10-kg rock and a 20-kg rock are thrown upward with the same initial speed v0 and experience no significant air resistance. If the 10-kg rock reaches a maximum height h, what maximum height will the 20-kg ball reach?
A) h/4 B) h/2 C) 2h D) h E) 4h
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chemistry homework help energy related