Unit 4 Vocab Flashcard

Front

What is a diagram showing all external forces acting on a body called?

Back

free-body diagram

Front

What is the mathematical expression for Newton's second law of motion?

Back

F_net = ma

Front

What is the term for the tendency of an object at rest to remain at rest?

Back

inertia

Front

What type of force acts along a connecting medium, such as a rope or cable?

Back

tension

Front

What do we call one or more objects of interest for which only the external forces are considered?

Back

system

Front

What is the relationship between net external force and acceleration according to Newton's second law?

Back

The net external force is proportional to the acceleration of the object.

Front

What is the unit of force in the International System of Units (SI)?

Back

Newton (N)

Front

What does the term 'mass' refer to in physics?

Back

The amount of matter in an object, typically measured in kilograms.

Front

How does inertia affect the motion of an object?

Back

Inertia causes an object at rest to stay at rest and a moving object to continue moving at constant velocity unless acted upon by an external force.

Front

What is the difference between a free-body diagram and a system diagram?

Back

A free-body diagram shows all external forces acting on a single object, while a system diagram considers multiple objects and the external forces acting on them.