FORCE AND NEWTONS LAW Section 2 Review

Think critically: You push a book across a table. The book moves at a constant speed, but you do not move. Identify all of the forces on you. Then, Identify all the forces on the book.

The book would have a net force, sliding friction, and applied force by me on it while I would have the force from the book and static friction while pushing the book.

Determine whether the inertia of an object changes as the objects velocity changes

The inertia of an object does not change as the objects velocity changes because the inertia will remain the same as long as the mass is the same.

Explain why Newtons first law of motion is sometimes called the law of inertia

The reason why Newtons first law of motion is sometimes called the law of inertia because it states that if the object is in motion, it will not rest unless an unbalanced force acts on the object.

Explain why an object with a smaller mass has a larger acceleration than an object with a larger mass if the same force acts on each.

The reason why an object with a smaller mass has a larger acceleration than an object with a larger mass if the same force acts on each is because the acceleration of an object depends on its mass as well as the force exerted on it, and if the mass is smaller than the other object than it is faster.

Use newtons law of motion to describe what happens when you kick a soccer ball.

When you first kick the soccer ball you would have exerted a force on it that would make it accelerate due to the force and the mass, and then while it is in the air, the soccer ball will become an example of inertia, and then finally the ball will rest until an unbalanced force acts on the soccer ball.