Newton Law 3 Flashcards
(26 cards)
What is Newton’s Third Law of Motion?
For every action, there is an equal and opposite reaction.
True or False: Newton’s Third Law applies only to objects in motion.
False.
Fill in the blank: According to Newton’s Third Law, when one object exerts a force on a second object, the second object exerts a ______ force on the first object.
equal and opposite
What is an example of Newton’s Third Law in everyday life?
When you jump off a small boat, the boat moves backward.
Multiple Choice: Which of the following illustrates Newton’s Third Law?
A) A rocket propelling forward by expelling gas backward.
True or False: Newton’s Third Law can be observed in the interaction between a swimmer pushing against the water.
True.
What happens to the forces exerted by two objects according to Newton’s Third Law?
They are equal in magnitude and opposite in direction.
Fill in the blank: The forces described by Newton’s Third Law act on ______ objects.
different
What principle explains why you feel a recoil when firing a gun?
Newton’s Third Law of Motion.
Multiple Choice: Which scenario best represents Newton’s Third Law?
C) A person walking pushes against the ground, and the ground pushes back.
True or False: Newton’s Third Law applies to both contact and action-at-a-distance forces.
True.
What is the relationship between action and reaction forces in Newton’s Third Law?
They occur simultaneously.
Fill in the blank: The force exerted by the Earth on an object is matched by the ______ exerted by the object on the Earth.
force
How does Newton’s Third Law explain the motion of a swimmer?
The swimmer pushes water backward, and the water pushes the swimmer forward.
Multiple Choice: Which of the following is NOT an example of Newton’s Third Law?
D) A ball rolling down a hill.
True or False: The action and reaction forces can cancel each other out.
False.
What role do action and reaction forces play in sports?
They facilitate movement and performance.
Fill in the blank: According to Newton’s Third Law, if you push against a wall, the wall ______ you back.
pushes
What is a common misconception about Newton’s Third Law?
That action and reaction forces act on the same object.
Multiple Choice: In which situation would you apply Newton’s Third Law?
B) Jumping off a diving board.
True or False: Newton’s Third Law can be observed in the flight of birds.
True.
What is the significance of understanding Newton’s Third Law in engineering?
It helps in designing systems that involve forces.
Fill in the blank: Newton’s Third Law is fundamental to the study of ______.
mechanics
What happens to the motion of an object if the action force is greater than the reaction force?
The object will accelerate in the direction of the net force.
