Texas TEKS 6.7

6.7 is a TEKS knowledge and skills statement. These are the student expectations under it.

• 6.7.A

  identify and explain how forces act on objects, including gravity, friction, magnetism, applied forces, and normal forces, using real-world applications

• 6.7.B

  calculate the net force on an object in a horizontal or vertical direction using diagrams and determine if the forces are balanced or unbalanced

• 6.7.C

  identify simultaneous force pairs that are equal in magnitude and opposite in direction that result from the interactions between objects using Newton's Third L...

01

What Students Need to Do

Students label gravity, friction, magnetic, applied, and normal forces in everyday situations. They use horizontal or vertical force diagrams to find net force and decide whether forces are balanced. They also identify equal, opposite interaction forces acting on two different objects.

02

What Mastery Looks Like

Given a scenario or force diagram, a student labels each force and calculates net force with both size and direction. The student correctly calls zero net force balanced and nonzero net force unbalanced. For an interaction, the student names the force on each object without placing both arrows on one object.

03

Common Misconceptions

Students often think balanced forces mean no forces are present. They may pair gravity and normal force as an interaction pair, even though both act on the same object. They may also assume an object moving right must have a net force pointing right.

04

How to Assess It

Exit ticket: “A box is pushed right with 18 N, while friction is 11 N left, weight is 30 N down, and floor support is 30 N up. Draw and label the forces, find each net force, classify the forces, and name the partner to Earth’s pull on the box.”

1. 01

   Rotate through stations with a sliding block, bar magnets, and a book on a table, then label every force acting on each object.

2. 02

   Ask students to explain why a book resting on a table does not move even though gravity pulls downward.

3. 03

   Play force diagram match: teams pair scenario cards with diagrams, calculate net force, and sort each as balanced or unbalanced.

4. 04

   Analyze a swimmer pushing water backward, then identify the equal, opposite forces between the swimmer and water.

• 1.7

  Force, motion, and energy. The student knows that forces cause changes in motion and position in everyday life. The student is expected to:

• 3.7

  Force, motion, and energy. The student knows the nature of forces and the patterns of their interactions. The student is expected to:

• 5.7

  Force, motion, and energy. The student knows the nature of forces and the patterns of their interactions. The student is expected to:

• 2.7

  Force, motion, and energy. The student knows that forces cause changes in motion and position in everyday life. The student is expected to: