Newton's 2nd Law

Front

What is Newton's 2nd Law of Motion?

Back

Newton's 2nd 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 x acceleration).

Front

What is the relationship between mass and acceleration according to Newton's 2nd Law?

Back

According to Newton's 2nd Law, as mass increases, acceleration decreases if the force applied remains constant. This means that heavier objects require more force to accelerate at the same rate as lighter objects.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. The more mass an object has, the greater its inertia.

Front

If two objects are pushed with the same force, which will accelerate more?

Back

The object with less mass will accelerate more when pushed with the same force, according to Newton's 2nd Law.

Front

What is net force?

Back

Net force is the total force acting on an object after all the individual forces are combined. It determines the object's acceleration.

Front

How do you calculate net force?

Back

Net force can be calculated by adding all the forces acting on an object in the same direction and subtracting the forces acting in the opposite direction.

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 object will not accelerate; it will either remain at rest or continue moving at a constant velocity.

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 is an example of an object with high inertia?

Back

A large truck has high inertia because it has a lot of mass, making it difficult to start or stop moving.

Front

If a force of 90N is applied to two carts of different masses, which will accelerate faster?

Back

The cart with less mass will accelerate faster when the same force is applied, according to Newton's 2nd Law.