6.7B POST Test Balanced and Unbalanced forces

Which of the following statements is true about the net force on the object in the diagram?

• . The vertical net force is 0 N; the horizontal net force is 65 N to the right. 

• . The vertical net force is 0 N; the horizontal net force is 65 N to the left

• . The vertical net force is 65 N to the left; the horizontal net force is 0 N. 

• The vertical net force is 65 N to the right; the horizontal net force is 0 N.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which two statements are true about the forces acting on the acorn?

• . The vertical forces are balanced, and the net force is 45 N down

• The vertical forces are unbalanced, and the net force is 85 N down.

• . The vertical forces are unbalanced. 

• The vertical forces are balanced.

• The net force is 40 N down.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which two carts experience the same net force?

• Carts 1 and 2

• Carts 1 and 3

• Carts 2 and 3

• Carts 2 and 4

Tags

NGSS.MS-PS2-2

There is a teacher on each team who pulls with a force of 140 N. Each classmate pulls with a force of 35 N. Which statement below describes how the team members be changed to make the forces between Team 1 and Team 2 balanced?  

• Add two classmates on Team 1. 

• Add an additional classmate on Team 2.

• Remove the teacher from Team 1 and replace him with two classmates. 

• Remove the teacher from Team 2 and replace her with three classmates

Tags

NGSS.MS-PS2-2

Label the force acting downward (in newtons) if the fan is not moving up or down because the forces are balanced. Enter your answer in the space below.

Mathematical Equivalence

ON

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-4

Two horses pull in opposite directions but together move in the direction shown. Horse 1 pulls with a force of 1560 N. If the net force is 117 N, which of the following measurements must be the force applied by Horse 2? 

• 1443 N

• . 1677 N

• . 1562 N 

• . 1560 N 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2