Semester-1 Review

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.

Front

How does Newton's First Law apply to a car crash?

Back

Passengers continue moving forward when the car stops suddenly due to inertia.

Front

What is the chemical symbol for Oxygen?

Back

O

Front

What does the chemical equation @@2H_2 + O_2 ightarrow 2H_2O@@ demonstrate?

Back

The law of conservation of mass, which states that mass is neither created nor destroyed in a chemical reaction.

Front

What is the relationship between the mass of reactants and products in a chemical reaction?

Back

The mass of the reactants equals the mass of the products.

Front

What is Newton's Second Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What is inertia?

Back

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

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.