Newton's Laws; Forces, Etc. 2021

Acceleration = Force ÷ mass

How far has a modern counterweight trebuchet thrown a car?

A measure of the amount of matter in an object; measured in grams (g)

A weight used as a counterbalance.

A force that opposes motion between two surfaces that are in contact. Causes objects to slow down.

The fixed point around which a lever pivots.

The combination of all the forces acting on an object.

change in speed or direction; change in velocity; slowing down, speeding up, turning

What was a controlled variable in the lab: Newton's First Law of Motion?

Referring to the Middle Ages in Europe or the period of history between ancient and modern times.

A machine used in medieval wars that threw objects with great force.

Net force is 0 N; causes NO change to an object's motion

Worked like a mousetrap. Used mainly large rocks. Very inefficient; designed by the Romans.

Unit for Force

The catapult that had a long lever and was pulled into action by a group of warriors.

What was the dependent variable in the lab: Newton's Second Law of Motion?

What was the independent variable in the lab: Newton's First Law of Motion?

What was the dependent variable in the lab: Newton's First Law of Motion?

What was a controlled variable in the lab: Newton's Second Law of Motion?

An object in motion stays in motion & an object at rest stays at rest unless acted upon by an unbalanced force

A push or pull exerted on an object

What was the independent variable in the lab: Newton's Second Law of Motion?

What type of catapult is most effective?

The tendency of an object to resist a change in motion so it can keep doing what it is doing

Net force greater than 0 N. ; causes an object to change its motion

A building with strong walls to defend against attack; a fort