Newton's Second Law

An object's velocity can be changed by changing its speed, its direction, or both.

• True
• False

Tags

NGSS.MS-PS3-1

A change in velocity over time is called ___________.

• speed
• force
• acceleration
• direction

The increasing speed of a falling object is caused by _____________.

• force
• mass
• speed
• gravity

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Newton's second law of motion describes acceleration as force divided by __________.

• mass
• inertia
• speed
• direction

Tags

NGSS.MS-PS2-2

Because of inertia, an object in circular motion has a tendency to move away in a curved line.

• True
• False

The force that pulls an object in a circular motion and keeps it in a circular motion is centripetal force.

• True
• False

The direction of the force that pulls an object in a circular motion is toward the ___________ of the circle.

• outside
• center
• left side
• right side

If a net force acts on a moving object in the direction that the object is moving, the object will slow down.

• True
• False

According to __________, the acceleration of an object is equal to the net force acting on the object divided by the object's mass. 

• Newton's Second Law
• Newton's Third Law
• Newton's First Law

What happens when unbalanced forces act on an object at rest?

• the object remains at rest
• the object begins moving in an unpredictable direction
• the object begins moving in the direction of the net force
• the object begins moving opposite to the direction of net force

Tags

NGSS.MS-PS2-2