Galileo's Assertion of Motion

an Italian scientist who first explained the concept of inertia. Who observed that when a ball rolls down an inclined plane, its speed increases; and when it rolls upwards, its speed decreases. This change in speed was due to gravity.

• Isaac Newton

• Aristotle

• Galileo Galilei

• Charles Darwin

When the ball rolled down the inclined plane, it was pulled by _______,

so its speed increased.

• Gravity

• Inertia

• Atmosphere

• Wind

According to Newton, which of the following has inertia?

• A ball at rest

• A rolling ball along an inclined plane

• A rolling ball along a horizontal plane

• All of the above

According to Galileo, which of the following has inertia?

• A ball at rest

• A rolling ball along a horizontal plane

• Both A and B

• None of the Above

A moving object will remain in its motion if there is no interference

like friction or any other force.

• True

• False

Heavy objects fall faster than light objects in a vacuum.

• False

• True

Force is necessary to sustain motion according to Aristotle.

• False

• True

Both Aristotle and Galileo believed that falling objects gain speed.

• True

• False

Both Aristotle and Galileo believed that a body in motion will remain in motion unless acted upon by an unbalanced force.

• True

• False

The velocity imparted to an object will change when there is no

unbalanced force acting on the object.

• True

• False