Unit 3 Force and Motion VOCABULARY REVIEW (20 words)

Front

What is the resistance to an object’s motion in a fluid called?

Back

Fluid friction.

Front

Who discovered the laws of motion?

Back

Sir Isaac Newton.

Front

What is Newton's law that states 'for every action, there is an equal and opposite reaction'?

Back

Newton's law of action-reaction (3rd law).

Front

What does the 1st Law of Motion describe regarding an object's tendency to resist motion?

Back

Inertia.

Front

How is speed defined in terms of distance and time?

Back

The distance traveled divided by the time needed to travel that distance, not including direction.

Front

What is the term for the force that opposes the motion of an object through air?

Back

Air resistance.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What is the relationship between mass and inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion, and it is directly related to the object's mass.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is the 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).