Newton's Second Law 2019

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.

Front

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

Back

The unit of force is the newton (N), which is defined as the force required to accelerate a one-kilogram mass by one meter per second squared.

Front

How do you calculate acceleration?

Back

Acceleration can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is the acceleration of an object moving at a constant speed?

Back

The acceleration of an object moving at a constant speed is 0 m/s².

Front

If a force of 10 N is applied to a mass of 2 kg, what is the acceleration?

Back

Using F = ma, acceleration a = F/m = 10 N / 2 kg = 5 m/s².

Front

What does it mean if an object has a negative acceleration?

Back

Negative acceleration indicates that the object is slowing down or decelerating.

Front

What is the relationship between mass and acceleration when force is constant?

Back

When force is constant, an increase in mass results in a decrease in acceleration.

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = ma, where F is force, m is mass, and a is acceleration.

Front

What is the acceleration of a car that goes from 0 to 60 m/s in 5 seconds?

Back

Using the formula a = (final velocity - initial velocity) / time, a = (60 m/s - 0 m/s) / 5 s = 12 m/s².

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. It is directly related to the mass of the object.