Newton's Laws of Motion

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 the formula to calculate net force?

Back

Net force (F) is calculated using the formula F = m * a, where m is mass and a is acceleration.

Tags

NGSS.HS-PS2-1

Front

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

Back

The unit of force is the Newton (N).

Front

What happens to an object in motion when no net force acts on it?

Back

It continues to move at a constant velocity.

Front

What is inertia?

Back

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

Front

How does mass affect inertia?

Back

The greater the mass of an object, the greater its inertia.

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.

Tags

NGSS.MS-PS2-2

Front

What is the relationship between action and reaction according to Newton's Third Law of Motion?

Back

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

Tags

NGSS.MS-PS2-1

Front

What is friction?

Back

Friction is a force that opposes the relative motion of two surfaces in contact.

Front

What factors affect the amount of friction between two surfaces?

Back

The amount of friction depends on the nature of the surfaces in contact and the normal force pressing them together.