Newton's Second Law of Motion says that the acceleration of an object depends on the object's mass and the amount of force applied. The greater the force, the more it will change the object's motion.
Newton's Third Law of Motion says that whenever you exert a force on an object, that object exerts an equal and opposite force on you. Or, for every action there is an equal and opposite reaction. For example, when you jump off the ground, there is a downward push of your legs into the ground as well as the upward push of your body into the air.
Which of these provides the best evidence for Newton’s First Law of Motion?
A
While sitting in a chair, you exert force on the chair, and the chair exerts the same amount of force back on you.
B
A basketball sitting on the basketball court doesn’t move until something pushes it.
C
You push a full shopping cart and an empty shopping cart. The empty shopping cart goes much faster than the full one.
D
You push your little brother on the swings, and he goes higher the harder you push him.
1 answer
The best evidence for Newton’s First Law of Motion is:
B A basketball sitting on the basketball court doesn’t move until something pushes it.
This option demonstrates the concept that an object at rest will remain at rest unless acted upon by an outside force. The basketball remains stationary until a force, such as a push from a person, acts on it.
