Balanced and unbalanced forces

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 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

NGSS.MS-PS2-1

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

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-PS2-2

NGSS.MS-PS2-1

What is the net force?

• 400 N Up
• 400 N Down
• - 400 N Down
• 800 N Down

Tags

NGSS.MS-PS2-2

Which of the answer choices is not an characteristic of a balanced force?

• no change in motion

• moving at a constant speed

• net force of zero

• causes a change in motion

If forces are going in the same direction, you should

• add the forces

• subtract the forces

• multiply the forces

• divide the net force

Tags

NGSS.MS-PS2-2

What is net force?

• push or pull on an object

• the sum of all forces acting on an object

• the ability to do work by applying force

• the mass and height of an object

Tags

NGSS.MS-PS2-2