Newton's Laws Final Review

Front

What is the net force?

Back

The net force is the total force acting on an object after all the individual forces are combined. It determines the object's acceleration and direction of motion.

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

How do you calculate force?

Back

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

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

If a 20 kg bike accelerates at 10 m/s², what is the force applied?

Back

200 Newtons (calculated using F = ma).

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

What is the relationship between mass and acceleration?

Back

According to Newton's Second Law, as mass increases, acceleration decreases if the same force is applied.

Front

What is the force required to stop a moving object?

Back

The force required to stop a moving object is equal to the object's momentum divided by the time over which the force is applied.

Front

What is the effect of balanced forces on an object?

Back

Balanced forces do not change the motion of an object; the object remains at rest or continues to move at a constant velocity.

Front

What happens when unbalanced forces act on an object?

Back

Unbalanced forces cause an object to accelerate in the direction of the net force.