Which has more inertia?

• a 100kg football player charging at you

• a 50 kg football player charging at you

In this case, equilibrium means

• The rate of formation of products equals the rate of formation of reactant. 

• Balanced Forces

• Constant Velocity

• Forces going the same direction

Tags

NGSS.MS-PS2-2

If gravity is the only force acting an object as it sails through the air - the object will have a​ ​ (a)  

• decreasing velocity
• Constant velocity
• Increasing velocity

Tags

NGSS.MS-PS2-4

Kilograms are a measure of: 

• Force

• Acceleration

• Mass

• Height

Make a prediction.  How can we move things if "for every action there is an equal and opposite reaction," and the explanation of balanced forces so far?

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The forces in the reindeer problem to get the sleigh moving are:

• Unbalanced

• balanced

• Equal and opposite

• Not enough information

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Organize the following with their law

Groups:

(a) Newtons 1st law

,

(b) Newtons 2nd law

,

(c) Newtons 3rd Law

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

• Acceleration is produced when a force acts on a mass

• Inertia

• An object in motion will remain in motion, unless acted on by a force

• Force equals mass times acceleration (F=ma)

• An object at rest will remain at rest unless acted upon by a force

• In a collision, the forces two objects exert on each other are equal and opposite

• When a swimmer pushes the water backwards, the water pushes the swimmer forward

• Objects resist changes to their state of motion

Tags

NGSS.MS-PS2-1