Newton's Law & Motion Review

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 an unbalanced 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. This is often expressed as F=ma.

Front

What is Newton's Third Law of Motion?

Back

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

Front

What is the formula to calculate acceleration?

Back

Acceleration (a) = (Final Velocity - Initial Velocity) / Time.

Front

What is the difference between speed and velocity?

Back

Velocity is speed with a given direction, while speed is a scalar quantity that only measures how fast an object is moving.

Front

What is inertia?

Back

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

Front

What is the unit of force in the SI system?

Back

The unit of force is the Newton (N).

Front

How do you calculate the net force acting on an object?

Back

Net force is calculated by summing all the forces acting on an object, taking into account their directions.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as Weight = mass × gravitational acceleration (W = mg).

Front

What is the concept of momentum?

Back

Momentum is the product of an object's mass and its velocity, expressed as p = mv.