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

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

If a net force of 400 N is applied to a motorcycle and it accelerates at 4 m/s², what is the mass of the motorcycle?

Back

100 kg.

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

Which has more inertia: a 1 kg object or a 10 kg object?

Back

A 10 kg object has more inertia than a 1 kg object.

Front

If a 20 N net force acts on a 2.0 kg object, what is the object's acceleration?

Back

10 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 frog with a mass of 0.5 kg leaps with an acceleration of 3 m/s², what force does it exert?

Back

1.5 N.

Front

If two objects are pushed with the same force, which will accelerate more: the one with less mass or the one with more mass?

Back

The object with less mass will accelerate more.