1. If Aristotle were to see a 12th century vertical windmill in what is now Holl

Question

1.

If Aristotle were to see a 12th century vertical windmill in what is now Holland how would he interpret the spinning mechanism?

Select one:

a. As an example of natural motion because windmills are made of wood

b. As an example of natural motion because windmills are pushed by natural air

c. As an example of celestial motion because windmills turn in a circle

d. As an example of violent motion because a constant wind is needed to turn the windmill

2.

Archimedes’ principle of buoyancy was an explanation of how objects can float on water. A metal boat floating on water would seem to violate which classical elemental theory:

Select one:

a. Natural position of earthen metal being above Water

b. Celestial motion of the stars in the sky

c. Violent motion of water applying force to keep the metal afloat

d. An object at rest tends to stay at rest

3.

In classical elemental theory Earth is normally associated with Dry and Cold. In order for an Earthen object to be warm it must be effected by

Select one:

a. Aether

b. Water or Air

c. Fire or Water

d. Fire or Air

4.

A rock and a cat have the same mass, which weighs more?

Select one:

a. The rock weighs more

b. The cat weighs more

c. They have the same weight

d. There is not enough information to determine which weighs more

5.

Galileo noticed that balls on an inclined plane _____ as they rolled down the plane and _____ when they moved up the plane.

Select one:

a. Accelerated, Slowed down

b. Slowed down, Decelerated

c. Sped up, accelerated

d. Slowed down, accelerated

6.

Galileo proposed that all objects freely falling

Select one:

a. Fall at a speed directly proportional to their mass

b. Fall at an acceleration dependent on the time of day

c. Fall at the same rate independent of weight or size

d. Fall at a speed proportion to the inverse of their diameter squared

Explanation / Answer

1). Correct option: b. As an example of natural motion because windmills are pushed by natural air

2). Correct option: c. Violent motion of water applying force to keep the metal afloat

3). Correct option: b. Water and Air

4). Since weight depends on the mass and acceleration due to gravity. Thus for two objects having same mass, acceleration due to gravity will be same. Thus they will have same weight.

Hence correct option: c. They have the same weight.

5). When the ball moves on the incline then acceleration due to gravity acts on it in downward direction.

Hence correct option: a. Accelerated, Slowed down

6). Correct option: c. Fall at the same rate independent of weight or size.

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