Foucault's pendulum:
a. continues to swing back and forth in the same fixed direction relative to the ground.
b. keeps swinging faster because the centrifugal force of Earth's rotation affects its weight.
c. changes how far it goes on each swing because of Earth's motion around the Sun.
d. changes the direction of its back and forth swing because Earth rotates beneath it.
e. changes the direction of its back and forth swing because of gravity.
Question 2
What is parallax?
a. Two lines in the same plane that never meet.
b. The way an object looks the same regardless of the observer's location.
c. The change in apparent relative positions of different parts of an object when seen from different angles.
d. The arrangement of two parts of an object so that one is always seen as directly in front of the other.
e. Two lines that cross.
Hydronephrosis. Normal kidney (left) and kidney with hydronephrosis (right) are compared. Note the d
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Warming friction using the knuckles. The first two knuckles move back and forth on the skin to ...