1) Assume the wooden ruler is balanced and that it has uniform density. If the w

Question

1) Assume the wooden ruler is balanced and that it has uniform density. If the wood is replaced by metal, increasing the mass and density of the ruler without changing its dimensions (and remaining uniform), the ruler will..

a. tip toward m1

b. still be balanced

c. tip toward m2

d. be unbalanced, but the direction depends on the hanging masses, the mass of the ruler, and distances

2)  assume the wooden ruler is balanced and that it has uniform density. If the wood is replaced by metal, increasing the mass and density of the ruler without changing its dimensions (and remaining uniform), the ruler will..

a. tip toward m

b. be unbalanced, but the direction depends on the hanging mass, the mass of the ruler, and distances

c. tip away from m

d. still be balanced

3) Suppose that, instead of plotting force vs. time, we plotted force vs. displacement. What quantity would now be represented by the area under this curve?

a. Time

b. Momentum

c. Energy

d. Impulse

Explanation / Answer

1.B

2.C

3.C

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