Intro to Physics final exam review

Force equals mass times acceleration

It is easier to change the direction of a heavy object than a lighter object.

A push or pull

It's not possible to build a machine that never runs down.

What is Stored energy?

Tendency for an object to remain in it's current state

Matter and energy can be created and destroyed, but not change forms.

The rate at which speed is increasing is called acceleration

The movements of the planets obey Newton's laws of motion.

The upward force on a boat in water is equal to the weight of the water displaced by the boat.

How much of something there is, is called power

The center of mass in an object is at the top of the object.

force towards the center of a circle

Shorter pendulums swing more slowly than longer pendulums.

Speed in a particular direction is velocity

An object at rest/motion tends to stay at rest/motion, unless acted upon by an outside force.

For every action, there is an opposite and equal reaction

Holding a weight above your head is not more work than picking it up.

force over a distance

What is energy being used?

Aerostotle is considered to be the first modern scientist that experimented with his ideas.

The momentum of a system after a collision must be the same as the momentum before the collision.