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 × acceleration).

Front

How do you calculate force using Newton's 2nd Law?

Back

Force can be calculated using the formula F = ma, where F is the force in Newtons, m is the mass in kilograms, and a is the acceleration in meters per second squared.

Front

If an object has a mass of 10 kg and an acceleration of 2 m/s², what is the force applied?

Back

20 N (calculated using F = ma: F = 10 kg × 2 m/s²).

Front

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

Back

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

Front

If a car has a mass of 2500 kg and a force of 5000 N is applied, what is its acceleration?

Back

2 m/s² (calculated using a = F/m: a = 5000 N / 2500 kg).

Front

Which object will accelerate more if the same force is applied: a car or a lawnmower?

Back

The lawnmower will accelerate more because it has less mass.

Front

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

Back

As mass increases, acceleration decreases, and vice versa, when force is constant.

Front

If a force of 25 N is applied to two shopping carts, one empty and one full, which will accelerate more?

Back

The empty shopping cart will accelerate more because it has less mass.

Front

How do you calculate acceleration using Newton's 2nd Law?

Back

Acceleration can be calculated using the formula a = F/m, where a is acceleration, F is force, and m is mass.

Front

What is the acceleration of a 5 kg block when a force of 20 N is applied?

Back

4 m/s² (calculated using a = F/m: a = 20 N / 5 kg).