Part a: Since Galileo observed that a body near Earth falls with an acceleration
ID: 1567100 • Letter: P
Question
Part a:
Since Galileo observed that a body near Earth falls with an acceleration that is independent of the body's mass, what does the Third Law tell us about how gravity depends on the mass of the Earth?
a. It doesn't tell us anything since we are standing on Earth.
b. It tells us the force of gravity does not depend on the mass of the Earth.
c. It tells us that the force of gravity does not depend on the mass of the object.
d. It tells us that a Law of Gravity depends on the mass of the Earth in the same way it depends on the mass of the falling body.
Part b:
Newton's Cradle is the physics toy with several balls hanging from string in contact with one another. Raise a ball up on one end and after it taps the others a ball flies off the far end while the first ball comes to rest.
What happens if you raise one ball on the left side, and two on the right side, to the same height. Let them go so they hit the stack of remaining balls from opposite sides simultaneously?
Two fly off on the left and one files off on the right.
Two fly back on the right and one flies back on the left.
One comes off each side
Two come off each side
Three come off the left and two come off the right.
a. It doesn't tell us anything since we are standing on Earth.
b. It tells us the force of gravity does not depend on the mass of the Earth.
c. It tells us that the force of gravity does not depend on the mass of the object.
d. It tells us that a Law of Gravity depends on the mass of the Earth in the same way it depends on the mass of the falling body.
Explanation / Answer
Since Galileo observed that a body near Earth falls with an acceleration that is independent of the body's mass, what does the Third Law tell us about how gravity depends on the mass of the Earth?
(d) It tells us that a Law of Gravity depends on the mass of the Earth in the same way it depends on the mass of the falling body.
Part b:
Newton's Cradle is the physics toy with several balls hanging from string in contact with one another. Raise a ball up on one end and after it taps the others a ball flies off the far end while the first ball comes to rest.
What happens if you raise one ball on the left side, and two on the right side, to the same height. Let them go so they hit the stack of remaining balls from opposite sides simultaneously?
(b) Two fly back on the right and one flies back on the left.
(d) It tells us that a Law of Gravity depends on the mass of the Earth in the same way it depends on the mass of the falling body.
Part b:
Newton's Cradle is the physics toy with several balls hanging from string in contact with one another. Raise a ball up on one end and after it taps the others a ball flies off the far end while the first ball comes to rest.
What happens if you raise one ball on the left side, and two on the right side, to the same height. Let them go so they hit the stack of remaining balls from opposite sides simultaneously?
(b) Two fly back on the right and one flies back on the left.