Fifth Grade News

Who says science has to be dull or boring?

The fifth grade science class has been having fun investigating/experimenting the three Laws of Motion published by Sir Isaac Newton.

Sir Isaac Newton was born in 1642. Almost all his creative years were spent at the University of Cambridge, England, first as a student, later as a greatly honored professor.

Three problems intrigued scientists in Newton's time: one of them was the laws of motion. It may be fairly stated that Newton was the first to solve all three laws. No wonder that the poet Alexander Pope, who lived in Newton's time, wrote:

Nature and Nature's laws lay hid in night

God said: "Let Newton be!" and all was light.

The fifth grade science class started their assignment by researching the Internet. They found very interesting stuff.

First, they found that the First Law of Motion is also called the Law of Inertia. This law states that “In the absence of forces, ("body") at rest will stay at rest, and a body moving at a constant velocity in a straight line continues doing so indefinitely.”

Second, they found that Newton's second law is a formula F = m a. If force equals mass times acceleration, then acceleration equals force divided by mass a = F/m When the formula is written this way, it explains that an object's speed, or velocity, will depend on its mass and the force that is applied to it.


F= ma   the more force... the more acceleration..... 

Finally, they found the Third Law of Motion is also called the “Law of Reaction”. This law states that ” "To every action there exists an equal and opposite reaction." In more explicit terms: Forces are always produced in pairs, with opposite directions and equal magnitudes. If body #1 acts with a force F on body #2, then body #2 acts on body #1 with a force of equal strength and opposite direction.

The student’s found that Newton's laws are important to NASA. They determine how NASA launches

rockets flies airplanes, and conducts tests and experiments.

These laws also help in understanding

other scientific principles, such as how

planets orbit the sun. The laws of motion

work in space and on Earth.

While investigating the Law’s of Motion, the fifth grade students found one interesting force Friction. Friction is the resisting force generated between two surfaces which move relative to each other.

Isaura designed a simple experiment using the “Scientific Method”, to test friction.

The fifth graders tested different surfaces (smooth and rough) in order to understand friction.

A team (Tyler, Yvie, Arneil and Keturah) was formed to run the test. They use a tape measurement, a stop watch, a ramp (cardboard) and car toy. First, they run the experiment in a smooth surface (vinyl tile).

       The fifth grade class had a great time researching and experimenting

Newton’s three Laws of Motion.

The question is who is having more fun?

WE DO !!!!!

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