Balanced and Imbalanced Forces

Students are playing tug-of-war. If group B pulls the rope to the right with a force of 400 N and group A pulls the rope to the left with a force of 250 N, what will happen to the ribbon in the middle of the rope?

• The ribbon will move to the left and group A will win the tug-of-war.

• The ribbon will move to the left and group B will win the tug-of-war.

• The ribbon will move to the right and group B will win the tug-of-war.

• The ribbon will move to the right and group A will win the tug-of-war.

Student A is pulling at 57 newtons and student B is pushing at 96 newtons. What is the net force (calculation).

• 153 N Left

• 39 N Left

• 153 N Right

• 39

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

• 60 N right

• 10 N left

• 60 n right

• 50 N left

Tags

NGSS.MS-PS2-2

Which could be an example of an unbalanced force?

• A plate sitting on a dining table

• A ball at the top of a hill that is not moving

• Earth orbiting the Sun 

• A baseball that has been thrown to home plate.

Tags

NGSS.MS-PS2-2

Which could be an example of a balanced force?

• An asteroid moving at a constant speed through space 

• A car accelerating from a stop sign

• A box of dishes falling from a counter 

• A rocket taking off 

Which of the following objects will experience an unbalanced force?

• A bike rider on a smooth and level road, pedaling at a constant rate.

• A train pulling on another train, each with the same amount of force.

• A chair sitting on the floor with balanced forces acting in opposite directions.

• A ball rolling across the floor with friction acting in the opposite direction.

Tags

NGSS.MS-PS2-2

If these teams are pulling with the same amount of force what will happen?

• The boy in blue will win.

• They will not move at all.

• The boy in red will win.

• Both will fall down.

Tags

NGSS.MS-PS2-2

What is the net force?

• 40 N left

• 0 N Balalnced

• 400 N right

• 40 N right

Tags

NGSS.MS-PS2-2

What is the net force?

• 400 N Up

• 400 N Down

• - 400 N Down

• 800 N Down

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