Newton's Second Law Review

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 formula is used to calculate force?

Back

F = ma, where F is force, m is mass, and a is acceleration.

Front

How much net force is required to accelerate a 10 kg object at 3 m/s²?

Back

30 N (calculated using F = ma: F = 10 kg * 3 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.

Front

If the same force is applied to a filled and an empty bottle, which will move further?

Back

The empty bottle will move further because it has less mass and therefore less inertia.

Front

What happens to the acceleration of an object if its mass increases while the force remains constant?

Back

The acceleration decreases, as acceleration is inversely proportional to mass (a = F/m).

Front

What is the relationship between mass and acceleration when the same force is applied?

Back

An object with greater mass will have less acceleration compared to an object with lesser mass when the same force is applied.

Front

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

Back

The unit of force is the Newton (N).

Front

How does friction affect motion according to Newton's Second Law?

Back

Friction opposes motion and reduces the net force acting on an object, which can decrease its acceleration.

Front

What is the effect of applying a greater force on an object with constant mass?

Back

Applying a greater force will result in greater acceleration, as per Newton's Second Law (F = ma).