Chapter 5

Question 1

Study of the effects of forces on matter

Answer 1

Dynamics

Question 2

Force of attraction that exists between all masses

Answer 2

Gravitational force

Question 3

Forces between charged particles

Answer 3

Electromagnetic forces

Question 4

An object continues in its state of rest, or of uniform motion in a straight line, unless it is acted upon by an unbalanced force

Answer 4

Newton’s First Law of Motion

Question 5

The resistance to change in motion of an object

Answer 5

Inertia

Question 6

When an unbalanced force acts on an object, the object will be accelerated

Answer 6

Newton’s Second Law of Motion

Question 7

SI unit of force

Answer 7

Newton

Question 8

Quantity of matter in an object

Answer 8

Mass

Question 9

Force that opposes the motion of two objects that are touching each other

Answer 9

Friction

Question 10

Resistance to motion between two objects that are in contact

Answer 10

Force of friction

Question 11

Every force is accompanied by an equal but opposite force; forces are always in pairs between pairs of objects

Answer 11

Newton’s Third Law

Question 12

Unbalanced force

Answer 12

Net force