Newton's Third Law of Motion

These flashcards cover key concepts and principles related to Newton's third law of motion as detailed in the lecture notes.

Newton's third law states: Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first. This can be summarized as __.

To every action there is always an opposed equal reaction.

In an interaction, when you push against a wall with your fingers, the wall __.

exerts an equal and opposite force back on you.

The forces involved in Newton's third law are called and .

action and reaction.

When a boxer punches a heavy bag, the heavy bag pushes back on the fist with a force that is __.

equal in magnitude and opposite in direction.

The reaction force when you walk is when your feet __ against the floor.

push against the floor.

The upward reaction force experienced by a helicopter as it lifts is referred to as __.

lift.

When a cannon is fired, both the cannon and the cannonball experience forces of equal magnitude. The acceleration of the cannon is __ than that of the cannonball due to its larger mass.

smaller.

In a tug of war, the winning team is the one that __ harder against the ground.

pushes.

The concept that no force occurs alone but rather requires a pair is represented by __.

Newton's third law.

When an object is falling freely, both the object and the Earth exert __ force on each other.

equal and opposite.

In any interaction, the forces occur and act on objects.

simultaneously; different.

Newton's third law states: Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first. This can be summarized as __.

To every action there is always an opposed equal reaction.

In an interaction, when you push against a wall with your fingers, the wall __.

exerts an equal and opposite force back on you.

The forces involved in Newton's third law are called ** and .

action and reaction.

When a boxer punches a heavy bag, the heavy bag pushes back on the fist with a force that is __.

equal in magnitude and opposite in direction.

The reaction force when you walk is when your feet __ against the floor.

push against the floor.

The upward reaction force experienced by a helicopter as it lifts is referred to as __.

lift.

When a cannon is fired, both the cannon and the cannonball experience forces of equal magnitude. The acceleration of the cannon is __ than that of the cannonball due to its larger mass.

smaller.

In a tug of war, the winning team is the one that __ harder against the ground.

pushes.

The concept that no force occurs alone but rather requires a pair is represented by __.

Newton's third law.

When an object is falling freely, both the object and the Earth exert __ force on each other.

equal and opposite.

In any interaction, the forces occur ** and act on objects.

simultaneously; different.

Action and reaction forces do not cancel each other out because they always __.

act on different objects.

A swimmer moves forward through water by pushing the water backward; the reaction is the __.

water pushing the swimmer forward.

According to the relation a = \frac{F}{m}, even though a massive truck and a small car collide with equal force, the car undergoes a larger __.

acceleration.

A rocket works in the vacuum of space because the force it exerts on its exhaust gases is countered by the __.

gases pushing the rocket forward.

When you jump off a small boat, you push the boat backward (action). The reaction is the __.

boat pushing you forward.