Force Review

Can momentum be destroyed/lost in a CLOSED system?

• No

• Yes

Tags

NGSS.HS-PS2-2

Which of Newton's laws most directly applies to inertia?

• None of them apply to inertia

• 1st Law

• 2nd Law

• 3rd Law

What is weight?

• Constant in any level of gravity

• The same thing as mass

• The downward force on a mass due to gravity

• A concept made up by the fashion industry

Tags

NGSS.MS-PS2-4

What is force?

• Any push or pull

• Neither of those

• Something that causes a change in motion

• Both of those

Tags

NGSS.HS-PS2-1

What is net force?

• The total of all the forces acting on an object

• Additive when the forces are acting in the same direction

• Resultant force

• All answers are correct

Tags

NGSS.MS-PS2-2

What is inertia?

• Resistance to a change in motion

• A force that counteracts a forward moving force

• The scientific word for what a seatbelt does

• The product of mass and velocity

What is true about contact forces and field forces?

• Contact forces directly act on an object and field forces act in a region without directly touching anything

• Field forces include friction and air resistance where contact forces include electrical and magnetic forces

• Contact forces are forces that do not directly touch anything and field forces act directly on everything within their field

• Both contact and field forces act on everything around them

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

If an object in motion is acted upon by a BALANCED force, its motion will change.

• True

• False

If an object at rest is acted upon by an UNBALANCED force, it will remain at rest.

• True

• False

Tags

NGSS.HS-PS2-1

Which of Newton's Laws says that force is the product of mass times acceleration?

• Newton's 2nd law

• All of them

• Newton's 3rd law

• none of them

Tags

NGSS.MS-PS2-2