Newton's First Law(Law of Inertia):
Newton's first law states that an object at rest stays at rest; an object in motion stays in motion until it comes intact with another object, whether or not it is moving. This law works with gravity to keep objects persistent in their stillness, when undisturbed. If friction wasn't an existing factor on our planet, objects would move in a straight line for all eternity, unless it impacted a wall or something of that sort.
Newton's Second Law:
Newton's second law states that by finding the product of mass by acceleration, you can define the amount of force and object or person is applying. The amount of force is measured in newton(N). If you calculate the mass of a person who is pushing a box and acceleration of the box being pushed, then multiply them, you could find the amount of force exerted in newtons.
Newton's Third Law:
Newton's third law states that for every action made, there is an equal and opposite reaction. For example, when you drop a ball from a very high height, when it impacts the ground, it will bounce off of the ground with the same amount of force as impacting it. The reason for the ball not bouncing as high as the time before is, of course, gravity.