Forces- 5.PS2.1-2

Newton’s Second Law of Motion states that

•  for every action there is an equal and opposite reaction

• an object at rest will remain at rest and an object in motion will stay in motion unless acted upon by an unbalanced force

• force = mass X acceleration

Tags

NGSS.MS-PS2-2

How do you determine net force when two forces act in the same direction?

• . Subtract the forces

             

            

            

• Multiply the forces

• Divide the forces

•   Add the forces

Tags

NGSS.MS-PS2-2

When an unbalanced force acts on an object at rest, the force

 

           

• changes the motion of the object

• is cancelled by another force.

• does not change the motion of the object.

• is equal to the weight of the object.

Tags

NGSS.MS-PS2-2

The tendency to resist a change in motion is a(n)

 

           

• unbalanced force

• inertia

• balanced force

• net force

The standard unit of force is a(n)

 

        

• newton

• gram

• ounce

• kilogram

Newton’s First Law of Motion states that

           

      

• for every action there is an equal and opposite reaction.

• an object at rest will remain at rest and an object in motion will stay in motion unless acted upon by an unbalanced force

• force = mass X acceleration

Which of the following is an example of an object being acted upon by an unbalanced force:

 

           

• a book on a table

• a baseball thrown by a pitcher

• a parked car

• a train traveling in a straight line at a constant speed

Tags

NGSS.MS-PS2-2

When the acceleration of an object doubles, what happens to the amount of force produced?

 

           

• It is divided in half.

• It stays the same.

• It doubles.

• Acceleration has no effect on force.

Tags

NGSS.HS-PS2-1

What is the sum of all the forces acting on an object?

 

    

• Balanced force

• Net force

• Velocity

• Unbalanced force

Tags

NGSS.MS-PS2-2

Newton’s Third Law of Motion states that

 

  

          

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

• an object at rest will remain at rest and an object an motion will stay in motion unless acted upon by an unbalanced force

• force = mass X acceleration

Tags

NGSS.MS-PS2-1