Newton's Law

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How do Newton's Laws affect our everyday lives?

How can two objects of different sizes exert the same amount of force on each other?

Vocab: Momentum- The result of the mass of the object times the object's velocity.

Connections: You applied a force to the board and the board applied an equal force on you. Egg drop.

Evidence: Formula: F1 = -F2 When there is a force acting between two objects they will feel the same amount of force. This force was equal in magnitude and opposite in direction, these are action-reaction forces. Action reaction forces: Can cause changes in motion, are equal in strength but opposite in direction, and act on different objects.

Claim: When there is a force acting between two objects they will feel the same amount of force.

Resources: Newton's Law organizer, 22. Momentum

In which direction will an object move if acted on by multiple forces?

Vocab: Net Force- The sum of all forces acting upon an object.

Connections: A car has a mass of 2000kg and has an acceleration of 15m/s2. Egg drop.

Evidence: Unbalanced forces cause acceleration. Formula: Net force = mass X acceleration There is a direct relationship between force and acceleration.(As force increases, acceleration increases)

Claim: acceleration depends on both force and mass.

Resources: Newton's Law organizer, assignments.

Why do objects at a constant velocity remain at that velocity?

Vocab: Inertia- The tendency of an object to resist a change in motion.

Connections: If you balance on one foot you won't fall unless acted upon by another force like someone pushing. Egg drop.

Evidence: Newton’s first law tells us motion will not change without a net force. If an object stops moving or starts moving you know there is a net force. If there is a net force then you know forces are unbalanced and there will be movement. In the egg drop the egg fell because of an unbalanced force, the force above the egg was greater than the force pushing back up from underneath it.

Claim: An object in motions stays in motion unless acted upon by an outside force.

Resources: Newton's Law organizer and 18. Inertia