Newtons Second Law

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 as F = ma.

Front

What happens when unbalanced forces act on an object at rest?

Back

The object begins moving in the direction of the net force.

Front

How much force is needed to accelerate a 3kg skateboard at 5m/s²?

Back

15N (using F = ma, where F = 3kg * 5m/s²).

Front

What must be happening if a rigid body of unchanging mass is observed accelerating?

Back

A force is being applied to the mass.

Front

How can Newton's second law be represented mathematically?

Back

F = ma, M = F/a, A = F/m (All are correct).

Front

If I apply the same force to a ping pong ball and a bowling ball, which one will accelerate farther and faster?

Back

The ping pong ball.

Front

What is the formula to calculate force?

Back

F = ma (Force equals mass times acceleration).

Front

What is the relationship between mass and acceleration in Newton's Second Law?

Back

As mass increases, acceleration decreases if the same force is applied.

Front

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

Back

Newton (N).

Front

What does it mean for forces to be unbalanced?

Back

Unbalanced forces result in a net force that causes an object to accelerate.