7th Grade Science DQA Vocab #1

Front

Air Resistance:

Back

The force exerted by air molecules against the motion of an object moving through the air.

Front

Free Body Diagram represents:

Back

Forces acting on an object without showing surroundings.

Front

Acceleration:

Back

The rate at which an object's velocity changes over time.

Front

Balanced Force: Forces equal in magnitude & opposite in direction, causing no change in motion.

Back

Forces equal in magnitude & opposite in direction, resulting in no change in motion.

Front

Unbalanced Force:

Back

Forces not equal in magnitude or opposite in direction, causing a change in motion.

Front

Gravity: The force of attraction between objects with mass.

Back

Gravity is the force that pulls objects with mass towards each other.

Front

Inertia: The tendency of an object to resist a change in its motion.

Back

The tendency of an object to resist a change in its motion.

Front

Newton's First Law (Law of Inertia) states:

Back

An object remains at rest or in uniform motion in a straight line unless acted upon by an external force.

Front

Newton's Second Law states:

Back

Acceleration is directly proportional to net force and inversely proportional to mass.

Front

Newton's Third Law states:

Back

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