2.1 Intro to Statics Review

What is the SI unit of force?

• lb (pound)

• N (Newton)

• Pa (Pascal)

Select the correct statement

• Force is a scalar quantity

• Force is a vector quantity 

• Force is the same as a moment

What is the formula for moment

• Mass times force

• Force divided by perpendicular distance

• Force times perpendicular distance

What is Newton's third law

• The force acting on an object is equal to the mass of that object times its acceleration

• A body at rest will remain at rest, and a body in motion will remain in motion unless it is acted upon by an external force

• For every action, there is an equal and opposite reaction

Tags

NGSS.MS-PS2-1

Branch of mechanics which studies forces and their effects on a system.

• Statics

• Dynamics

• Kinematics

• Mechanics

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

If two forces 5 N and 6 N acting at a point in the same direction, then the resultant force is

• 1 N

• 11 N

• 30 N

• None of these

Tags

NGSS.MS-PS2-2

If two forces 10 N and 6 N acting at a point in opposite direction, then the resultant force is

• 60 N

• 4 N

• 3 N

• None of these

Tags

NGSS.MS-PS2-2