Force Test Review

Front

The relationship among mass, force, and acceleration is explained by ___

Back

Newton's 2nd Law of Motion

Front

What is the maximum speed that a falling human can reach? What is the term for this maximum speed?

Back

The maximum speed is around 120 mph, and it is called terminal velocity. It exists because the force of gravity is balanced by air resistance.

Front

How does a swimmer move through the water?

Back

The swimmer pushes backwards on the water and the water pushes with an equal but opposite force back on the swimmer.

Front

An object that is falling freely has a constant what?

Back

C. acceleration

Front

Why does someone not wearing a seatbelt in a car fly forward when the car stops suddenly?

Back

Because of Newton's First Law of Motion, which states that an object in motion stays in motion unless acted upon by an external force.

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 unless acted upon by a net external force.

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 terminal velocity?

Back

The maximum speed an object reaches when the force of gravity is balanced by air resistance.

Front

What is the formula for calculating force?

Back

Force (F) = mass (m) × acceleration (a).