Newton's 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 with the formula F = ma, where F is the net force, m is the mass, and a is the acceleration.

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

Forces can change an object's motion by changing its ------, its direction, or both.

Back

speed.

Front

What is a Balanced Force?

Back

Balanced forces are two forces acting in opposite directions on an object, and they are equal in size, resulting in no change in motion.

Front

Will it take more force to push an empty shopping cart or a shopping cart that is full?

Back

It will take more force to push the full shopping cart.

Front

If a golf ball hit with a force of 15 N travels with an acceleration of 25 m/s², what is the mass of the golf ball?

Back

0.6 kg.

Front

What is the formula to calculate force?

Back

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

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

How does mass affect acceleration when a constant force is applied?

Back

As mass increases, acceleration decreases when the same force is applied, according to Newton's Second Law.

Front

What is net force?

Back

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