FORCES

OBJECTIVE

• By the end of this lesson, you will know the different types of forces and who helped give us new information about forces.

During this lesson, I will show a video, give a three question quiz, and define forces in a detailed explanation.

FORCES

• Galileo discovered objects change motion with a push or pull.
• Isaac Newton developed mathematical equations describing how forces affect motion.
• Newtons most important contribution was his description of gravitational force, which explains the the motion of the moon and planets.
• Archimedes, a Greek astronomer, discovered the original idea of force around 300 B.C.
• Force is usually described by being a push or pull system, which is accurate.

Strong nuclear force-
holds the protons and neutrons together in an atomic model

Electromagnetic forces-
the static (unmoving) and the moving electrical charges
Ex. Lightning

Weak nuclear force-
holds the elementary particles of matter together

Gravitational force-
this force is used in all types of forces
Ex. Keeping us on the ground

Contact forces-
caused by the attraction or repulsion of atom sized particles
Ex. Kicking a soccer ball

Balanced forces-
forces whose pushes and pulls cancel each other out

External force-
a force that acts on a system from outsides the system's boundary

QOTD

• What are some real life examples of force?

AOTD

• Gravity, lightning, dribbling a basketball

VIDEOS

• Force: Definition and Types
• What is a Force

QUIZ

• Who realized objects only change motion when a push or pull occurs to the object?
• What are the two types of forces?
• Who developed mathematical equations describing how forces affect motion?

ANSWERS

• Galileo
• 2/9
• Isaac Newton

BIBLICAL INTEGRATION

• Ezekiel 1:12, "And each went straight forward; wherever the spirit was about to go, they would go, without turning as they went."
• This relates to force because it shows how you are supposed to push through all the sin and keep your eyes on God.