Balanced and Unbalanced Forces

What is a force?

• a push or pull on an object

• a push on an object

• a pull on an object

• a magical pull in one direction

Tags

NGSS.MS-PS2-1

A combination of all the forces acting on an object is called?

• gross force

• balanced force

• unbalanced force

• net force

Tags

NGSS.MS-PS2-2

To find the net force on an object:

• combine the amounts of the forces acting on the object

• always subtract the amounts of the forces

• multiply the forces together

• divide the larger force by the smaller one

Tags

NGSS.MS-PS2-2

When the net force on an object is zero, we say that the two forces are:

• cancelled out

• unbalanced

• balanced

• gross

Tags

NGSS.HS-PS2-2

When the net force on an object is zero, the object's motion will:

• stop

• increase

• change

• not change

Tags

NGSS.HS-PS2-1

When forces are balanced, they:

• increase the speed

• do not cause any change in the motion of an object

• decrease the speed

Tags

NGSS.MS-PS2-2

If you are pushing a box toward your friend with a force of 20 N, and your friend is pushing the box toward you with a force of 30 N, what will happen to the box?

• The box will move toward your friend with a force of 10 N.

• The box will move toward you with a force of 50 N.

• The box will move toward you with a force of 10 N.

• The box will move toward your friend with a force of 50 N.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If you are pulling on a box with a force of 30 N, and your friend is pushing the box in the same direction with a force of 30 N, what will happen to the box?

• The box will move in the direction of the push and pull with a force of 60 N.

• The box will not move because the forces are balanced.

• The box will move in the direction of your friend's push with a force of 30 N.

• The box will move in the direction of your pull with a force of 30 N.

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

• 10 N right

• 50 N left

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-PS2-1

NGSS.MS-PS2-2