Evidence of Balanced and Unbalanced Forces

Are forces balanced or unbalanced when a marble rolls down a ramp?

• Balanced

• Unbalanced

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A girl is pushing a cart by herself with a force of 7 N. What will happen if a boy begins to help her and their combined force is 17 N?

• The cart will speed up.

• The cart will slow down.

• The cart will move at a constant speed in a straight line.

• The cart will fly to never never land!

Tags

NGSS.MS-PS2-2

Are forces balanced or unbalanced when a plane is moving at a constant speed in a straight line?

• Balanced

• Unbalanced

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Are the forces acting on the rope balanced or unbalanced?

• Balanced

• Unbalanced

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

LT # 1 What is the net force?

(a)  

• 5 N left

• 30 N left

• 25 N right

• 55 N right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

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

• unbalanced

• weak

• balanced

• strong

Tags

NGSS.HS-PS2-1

What is the net force?

(a)  

• 5 N left

• 30 N left

• 25 N right

• 55 N right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

At A the speed of the ball increases. At B, speed decreases. At C, speed is constant. Which points does the ball experience unbalanced forces?

• A and B

• B and C

• A and C

• A, B and C

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If all four forces are balanced, the plane will

• plummet to the ground

• fly faster and faster

• fly slower and slower

• fly at a constant speed and direction

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is true about this image?

• It shows unbalance forces.

• It shows balanced forces.

• The people on the right are winning.

• The people on the left are winning.