Newton's 3 Laws Flashcard

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

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 does Newton's Second Law of Motion state?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

How does increasing force affect acceleration according to Newton's Second Law?

Back

Increasing the force applied to an object results in greater acceleration.

Front

What is an example of Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction. For example, a rocket launches upward as gases are expelled downward.

Front

What is the concept of action and reaction forces?

Back

Action and reaction forces are pairs of forces that are equal in size, but opposite in direction, acting on two different objects.

Front

How does frictional force affect motion?

Back

Frictional force opposes the motion of an object, making it harder to start moving or to keep moving.

Front

What role does gravitational force play in motion?

Back

Gravitational force pulls objects toward each other, affecting their motion, especially in the case of falling objects.

Front

What is the significance of mass in Newton's Second Law?

Back

Mass is a measure of an object's inertia; greater mass means more force is needed to achieve the same acceleration.

Front

How can Newton's laws be applied to car safety design?

Back

Designs like crumple zones and airbags use Newton's laws to reduce the impact force during collisions.