Newton's Second Law

Front

What is Newton's Second Law of Motion?

Back

Newton's Second Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. It can be expressed with the formula: F = ma (Force = mass × acceleration).

Front

How can acceleration be described?

Back

Acceleration is the change in velocity divided by time.

Front

What is the formula to calculate acceleration?

Back

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

Front

What unit is used to measure force?

Back

The unit of force is the Newton (N).

Front

What does 1 Newton represent?

Back

1 Newton is the force required to accelerate a 1 kg mass by 1 m/s².

Front

If a net force of 0 is acting on an object, what can be said about its motion?

Back

If the net force is 0, the object is either at rest or moving at a constant velocity.

Front

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

Back

As mass increases, for a given force, the acceleration decreases.

Front

What is the acceleration of a roller coaster that changes its velocity from 6.0 m/s to 70 m/s in 4 seconds?

Back

The acceleration is 16 m/s².

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the formula for calculating weight?

Back

Weight (W) = mass (m) × gravitational acceleration (g).