Newton's First Law

If I slowly roll a ball down the hallway, why does it eventually stop?

• Because of Newton's First Law
• Friction and Air Resistance
• Inertia
• It wouldn't stop, it would keep going until it hits a wwall.

If forces on an object are balanced, the object is...

• Moving
• Not moving

Tags

NGSS.MS-PS2-2

Which of the following is the best example of Newton's First Law of Motion?

• Jessica's body flies forward after she hits the brakes

• Jessica drives a car

• Jessica is at a road crossing

• Jessica is sleeping

During an arm wrestling competition, Mrs. Carheden beats Mr. Klipstein and smashes his hand to the table within 5 seconds. This is an example of...

• Balanced Force
• Unbalanced Force

If I push a 30 kg shopping cart that is accelerating at 5 m/s², what force am I using?

• 25 N
• 6 N
• 35 N
• 150 N

A(n) _____ is a push or a pull

• motion
• velocity
• acceleration
• force

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

• direction of motion
• force pair
• inertia
• net force

Forces that cancel each other are called ____ forces

• neutral
• balanced
• inactivated
• null

When balanced forces act on an object, the net force is ___. 

• positive
• negative
• zero
• increased due to friction

When unbalanced forces act on an object, ___________________

• the object accelerates
• the net force is 0
• the object speeds up
• friction become greater than the net force