Units 1 and 2 review

Front

What is a Free Body Diagram?

Back

A diagram that shows all the forces acting on an object.

Front

What does Newton's 1st Law state?

Back

An object at rest will stay at rest and an object in motion will stay in motion unless acted upon by an external force.

Front

What is displacement?

Back

Displacement is the shortest distance from the initial to the final position of an object, considering direction.

Front

What is the purpose of Free Body Diagrams?

Back

To show all forces acting on an object.

Front

Why was Sputnik 1 significant?

Back

It showcased the Soviet Union's superiority in space.

Front

What are the four fundamental forces in nature?

Back

Gravitational force, electromagnetic force, strong nuclear force, and weak nuclear force.

Front

What is the difference between distance and displacement?

Back

Distance is the total path length traveled, while displacement is the straight line distance from start to finish.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What is the significance of the net force?

Back

The net force determines the acceleration of an object according to Newton's second law.