Astronomy 106 Quiz 12

1. A truck is traveling at a constant velocity. Inside the storage compartment, a rock is dropped from the midpoint of the ceiling and strikes the floor below. The rock hits the floor

[a] exactly below the midpoint of the ceiling

[b] ahead of the midpoint of the ceiling

[c] behind the midpoint of the ceiling

Why?

2. Suppose the driver of the truck in question (1) steps on the accelerator immediately after the rock is dropped from the ceiling. In this case the rock hits the floor

[a] exactly below the midpoint of the ceiling

[b] ahead of the midpoint of the ceiling

[c] behind the midpoint of the ceiling

Why?

3. Suppose the driver of the truck in question (1) slams on the break immediately after the rock is dropped from the ceiling. In this case the rock hits the floor

[a] exactly below the midpoint of the ceiling

[b] ahead of the midpoint of the ceiling

[c] behind the midpoint of the ceiling

Why?

4. Explain how Romer discovered that light has a finite velocity