Newton's 1st & 2nd Laws of Motion

Front

What is Newton's First Law known as?

Back

The Law of Inertia

Front

What does Newton's First Law state?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the formula for calculating force according to Newton's Second Law?

Back

Force (F) = Mass (m) × Acceleration (a)

Front

If a 2.3-kg ball hits a wall with a force of 61.6 N, what is the acceleration of the ball?

Back

26.8 m/s²

Front

What is the relationship between mass and acceleration in Newton's Second Law?

Back

The greater the mass of an object, the more force is required to accelerate it.

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 International System of Units (SI)?

Back

Newton (N)

Front

What does Newton's Second Law explain about the motion of objects?

Back

It explains how the velocity of an object changes when it is subjected to an external force.

Front

What is the mass of a car if it exerts a force of 1260 N and has an acceleration of 2 m/s²?

Back

Mass = Force / Acceleration = 1260 N / 2 m/s² = 630 kg

Front

How does mass affect the acceleration of an object when a constant force is applied?

Back

As mass increases, acceleration decreases if the force remains constant.