Newton's Laws and Forces Flashcard

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 with the same speed and in the same direction unless acted upon by a net external force.

Front

What is Newton's Second Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. (F = ma)

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

How do you calculate acceleration?

Back

Acceleration (a) is calculated by dividing the net force (F) by the mass (m) of the object: a = F/m.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What does it mean when forces are balanced?

Back

Balanced forces mean that the net force acting on an object is zero, resulting in no change in motion.

Front

What does it mean when forces are unbalanced?

Back

Unbalanced forces result in a net force that causes an object to accelerate in the direction of the net force.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the relationship between mass and acceleration?

Back

As mass increases, for a given force, acceleration decreases (and vice versa).

Front

What is an example of Newton's First Law in everyday life?

Back

A book resting on a table will remain at rest until someone pushes it.