Newton's Second Law Practice

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

What is the formula to calculate force?

Back

The formula to calculate force is F = ma, where F is force, m is mass, and a is acceleration.

Front

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

Back

The unit of force in the SI system is the Newton (N).

Front

What happens to the acceleration of an object if the net force acting on it is zero?

Back

If the net force acting on an object is zero, the acceleration of the object is also zero, meaning it will either remain at rest or continue moving at a constant velocity.

Front

If a 10 kg object experiences a force of 30 N, what is its acceleration?

Back

To find the acceleration, use the formula a = F/m. Here, a = 30 N / 10 kg = 3 m/s².

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is the acceleration of an object traveling at a constant velocity?

Back

The acceleration of an object traveling at a constant velocity is 0 m/s².

Front

How do you calculate the mass of an object if you know the force applied and the acceleration?

Back

You can calculate the mass using the formula m = F/a, where F is the force applied and a is the acceleration.

Front

What is the acceleration of a 5 kg object when a force of 25 N is applied?

Back

Using the formula a = F/m, the acceleration is a = 25 N / 5 kg = 5 m/s².

Front

What is inertia?

Back

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