Quiz - Historical Views of Motion

According to Aristotle, there were two types of motion: ​ ​ (a)  

• natural and violent
• internal forces and external forces
• inertia and gravity
• a push or a pull

Objects will resist a change in motion because they have ​ (a)   .

• inertia
• gravity
• external forces
• friction

A ​ (a)   is a push or pull.

• force
• natural motion
• circular motion
• flux capacitor

According to Aristotle, smoke rising into the air is an example of ​ (a)   .

• natural motion
• violent motion
• inertia
• gravity

Galileo used a ball and inclines to better understand ​ (a)   .

• forces and motion
• chemistry
• phases of matter
• density

​ (a)   acts between objects that touch as they slide past each other.

• Friction
• Gravity
• Inertia
• Natural motion

​ (a)   , like the motion of the planets, was also considered ​ (b)   by Aristotle.

• Circular motion
• natural motion
• violent motion
• Straight line motion

Copernicus believed that ___, which was very controversial at the time.

• the Earth orbited the Sun

• the Sun orbited the Earth

• gravity caused inertia

• friction was not a force

Aristotle believed that ___ motion did not require any forces.

• natural

• violent

Galileo believed that a moving object would need ​ (a)   to stay in motion if ​ (b)   .

• no force
• friction were absent
• a large force
• external forces