Balanced and Imbalanced Forces

A wheeled cart is moving to the right at a constant speed.  Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?

• Balanced Forces, Constant Speed

• Balanced Forces, Acceleration

• Unbalanced Forces, Constant Speed

• Unbalanced Forces, Acceleration

Tags

NGSS.MS-PS2-2

How will this object move? 

• It won't move. 

• It will move to the right. 

• It will move to the left. 

• It will move up. 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N. What is the resultant force?

• 50N to the left.

• 350N to the left.

• 350N to the right.

• 50N to the right.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the blocks above has balanced forces acting on it?

• A

• B

• C

• D

two forces acting in opposite directions on an object, and do not cause a change in motion; equal in size

• Force

• Balanced Force

• Unbalanced Force

• Inertia

An airplane is travelling North through the sky at a constant speed when turbulence causes it to take a different route, changing its direction. Explain the forces at work on this plane.

• Unbalanced, because the plane is moving forward, not backwards

• Unbalanced, because the speed is constant and there is a change in direction

• Balanced, because the plane is not falling to a lower altitude

• Unbalanced, because the plane is in motion

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

How will this object move? 

• It won't move. 

• It will move to the right. 

• It will move to the left. 

• It will move in both directions. 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If an object is not moving the forces acting upon it are _____________

• unbalanced

• weak

• balanced

• Hulk Smash!

Are the forces acting on the sled in Section 1 balanced or unbalanced? The track is smooth and frictionless.

• Balanced

• Unbalanced

Tags

NGSS.MS-PS2-2

Are the forces acting on the sled in Section 3 balanced or unbalanced? The track is smooth and frictionless.

• Balanced

• Unbalanced

Tags

NGSS.MS-PS2-2