Dynamics - Vocabulary

Front

What is Friction?

Back

Friction is a retarding force that goes opposite the desired motion.

Front

What does FBD stand for in physics?

Back

FBD stands for Free Body Diagram.

Front

What does the topic 'Dynamics' study?

Back

Dynamics is the study of forces on objects.

Front

Which statement is FALSE regarding force and mass?

Back

Mass and weight are inversely proportional.

Front

What does the term 'normal' mean in physics?

Back

Normal means perpendicular to the surface.

Front

What is the formula for calculating force?

Back

Force = Mass x Acceleration (F = m*a).

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is the relationship between mass and acceleration according to Newton's Second Law?

Back

Force and acceleration are directly proportional; as mass increases, acceleration decreases for a constant force.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.