Newton's first law of motion
An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line, unless acted on by an unbalanced force.
The tendency of all objects to resist any change in motion.
Newton's second law of motion
The acceleration of an object depends on the mass of the object and the amount of force applied to the object.
The relationship between the force applied and the object's acceleration.
An objects acceleration increases as the force applied increases. (Vice versa.)
Newton's second law mathematically
a=F/m or F=m x a
Newton's third law of motion
Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first.
How forces in each pair are related
When a force is exerted, another force occurs that's equal in size and opposite in direction.
What Newton explained with his 3 laws of motion
He explained the relationship between force and the motion of an object.
Newton's first law is sometimes called..
The Law of Inertia
The direction in which objects accelerate
In the direction of the force applied.
When an object is falling at a constant velocity.
The tendency of an object to resist a change in motion.
The path that a thrown object follows.
When air resistance does not affect the motion of a falling object.
When a soccer ball is kicked why do the reaction and action forces NOT cancel eachother out?
Because the forces act on different objects.
An object is in projectile motion if it...
...is thrown with a horizontal push, is accelerated downward by gravity, and does not accelerate horizontally.
The formula for momentum
p=m x v or momentum= mass x velocity