Newton's Laws, Friction & Momentum Flashcard

Front

What is Newton's 1st 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 2nd 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 3rd Law of Motion?

Back

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

Front

What is the formula for calculating momentum?

Back

Momentum (p) is calculated as the product of mass (m) and velocity (v): p = mv.

Front

What is the unit of momentum?

Back

The unit for momentum is kg·m/s.

Front

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

Back

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

Front

What are the two main types of friction?

Back

The two main types of friction are static friction (preventing motion) and kinetic friction (opposing motion).

Front

How does mass affect inertia?

Back

Inertia is the resistance of an object to change its state of motion; greater mass means greater inertia.

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's 2nd Law, the net force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma).

Front

What is an example of Newton's 3rd Law in action?

Back

When you jump off a small boat, you push the boat backward as you move forward.