SC15.8.8

Science (2015) Grade(s): 8

SC15.8.8
Use Newton’s first law to demonstrate and explain that an object is either at rest or moves at a constant velocity unless acted upon by an external force (e.g., model car on a table remaining at rest until pushed).

Unpacked Content

Scientific and Engineering Practices

Constructing Explanations and Designing Solutions

Crosscutting Concepts

Cause and Effect

Knowledge

Students know:

An object at rest remains at rest unless acted on by an external force.
An object in motion remains in motion unless acted upon by an external force.
Inertia is the tendency of an object to resist a change in motion.
An object subjected to balanced forces does not change its motion.
An object subjected to unbalanced forces changes its motion over time.
Constant velocity indicates that an object is moving in a straight line at a constant speed.

Skills

Students are able to:

Demonstrate Newton's first law.
Articulate a statement that relates a given phenomenon to a scientific idea, including Newton's first law and the motion of an object.

Understanding

Students understand that:

Newton's First Law states that an object at rest remains at rest unless acted upon by an external force.
Newton's First Law states that an object at in motion remains in motion at a constant velocity unless acted upon by an external force.

Vocabulary

Sir Isaac Newton
Newton's First Law of Motion
Constant velocity
Balanced force
Unbalanced force
External force
Rest
Motion
Inertia

Aligned Learning Resources

Touchdown Challenge: A Physical Science Mission to Mars

Newton's Laws Part 1 - Newton's 1st Law

Newton's Laws of Motion Part 3: Newton's 2nd Law & Review

Newton's First Law: Inertia StudyJam

The Art of Forces and Motion

Isaac, Inertia, and the NFL

Rolling Down the Hallway

Why Do We Wear Seatbelts?

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