Quiz 2 on Physical Science Concepts

According to Aristotle, why does a ball fall back to Earth?

• Because of air pressure

• Because its natural element is earth

• Because it is pushed down

• Because of inertia

What did Galileo prove about objects of different masses falling?

• Heavier objects fall faster

• Lighter objects fall faster

• All objects fall at the same rate in a vacuum

• Mass determines acceleration

Which of the following best describes horizontal motion in Galileo's view?

• It requires constant force to continue

• It continues indefinitely unless acted upon by a force

• It stops immediately when no one pushes

• It always slows down naturally

What shape did Galileo describe for projectile motion?

• Circle

• Parabola

• Straight line

• Spiral

Aristotle believed horizontal motion is:

• Natural motion

• Violent motion

• Circular motion

• Projectile motion

Which concept did Galileo introduce that later influenced Newton's First Law of Motion?

• Impetus

• Inertia

• Natural place

• Violent motion

According to Aristotle, why do heavier objects fall faster?

• Because they resist air more

• Because they contain more 'earth'

• Because they have greater inertia

• Because they are pushed harder

In Galileo's experiments, what slows objects down when falling on Earth?

• Gravity

• Weight

• Air resistance

• Their size

When a cannonball is fired, what would Aristotle argue keeps it moving forward?

• Inertia

• Impetus provided by the initial force

• Air pushing it

• Gravity alone

According to Galileo, projectile motion is a combination of:

• Circular and straight-line motion

• Vertical accelerated motion and horizontal constant motion

• Violent and natural motion

• Impetus and inertia