7.1.3 Newton's Second Law

An object's velocity can be changed by changing its:

• speed

• direction

• color

• mass

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-PS2-4

One kg multiplied by m/s² can also be expressed as 1 __________.

• direction
• mass
• kilogram²
• newton

Tags

NGSS.HS-PS2-1

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

A force that pulls towards the center of a curve:

• circular force

• centrifugal force

• centripetal force

• friction

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

A 20 kg bike accelerates at 10 m/s². What is the force acting on the bike?

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

Tags

NGSS.MS-PS2-2

An object with a mass of 10 kg is accelerated upward at 2 m/s². What force is required?

• 20 N

• 2 N

• 5 N

• 0 N

Tags

NGSS.MS-PS2-2