Chapter Eight, Lesson Three: Newton's Laws of Motion

Question 1

Newton’s first law of motion

Answer 1

Newton’s first law of motion states that an object at rest will remain at rest unless acted upon by a nonzero net force. An object moving at a constant velocity will continue moving at a constant velocity unless acted upon by a nonzero net force.

Question 2

inertia

Answer 2

Resistance to change in motion is called inertia.

Question 3

Newton’s second law of motion

Answer 3

Newton’s second law of motion states that an object’s acceleration depends on its mass and on the net force acting on it.

Question 4

Newton’s third law of motion

Answer 4

Newton’s third law of motion states that if one object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object.