Newton's First Law of Motion

A push or a pull is called ______.

• force
• mass
• acceleration
• density

Tags

NGSS.MS-PS2-1

The combination of all the forces acting on an object is called _____.

• net force
• balanced force
• unbalanced force
• gravitational force

Tags

NGSS.MS-PS2-2

The _____ is the SI unit of force.

• newton

• kilogram

• m/sec²

• m/sec

When calculating the net force on an object, this designation is given to the reference direction.

• positive
• negative
• neutral
• zero

Tags

NGSS.MS-PS2-2

When calculating net force, this designation is given to the direction that is opposite the reference direction.

• negative
• positive
• neutral
• zero

_____ forces are those acting on an object that combine and form a net force of zero, therefore they do not change the object's motion.

• balanced
• unbalanced

• magnetic

• frictional

Tags

NGSS.MS-PS2-2

_____ forces are those acting on an object that combine and form a net force that is not zero, therefore the object's motion changes.

• unbalanced
• balanced
• electrical

• magnetic

Tags

NGSS.MS-PS2-2

This scientific law states that if the net force on an object is zero, the motion of the object does not change.

• Newton's First Law
• Law of Universal Gravitation
• Newton's Second Law
• Newton's Third Law

Speed in a given direction is _____.

• velocity

• motion

• acceleration

• mass

Constant velocity reached when air resistance equals the force of gravity acting on a falling object is ______.

• terminal velocity

• unbalanced force

• 0 meters per second

• a reference point

Tags

NGSS.MS-PS2-2