1. Newton’s Third Law Notes
For every action there is an opposite, but equal reaction…

2. TEKS 8.6C investigate and describe applications of Newton’s law of inertia, law of force and acceleration, and law of action-reaction such as in vehicle restraints, sports activities, amusement park rides, Earth’s tectonic activities, and rocket launches

3. Newton’s third law states that for every action there is always an opposite, but equal reaction.

4. This means that when you push on an object, it pushes back on you with equal force.

5. Observe the person pushing the ball in the picture.

6. The person is pushing on the ball, but the ball is pushing back on the person.

7. The reaction is NOT the ball moving forward (The ball moving forward is cause and effect)

8. Action: person pushing ball Reaction: ball pushes back on person

9. See if you can identify the opposite reaction in each of the pictures
See if you can identify the opposite reaction in each of the pictures! Draw arrows to show the direction of the action and opposite reaction.

10. Fist hits wall.
a. wall hits fist

11. Head bumps ball.
b. ball bumps head

12. Hand touches globe.
c. globe touches hand

13. Boy kicks ball.
d. ball kicks boy

14. Athlete pushes bar up.
e. bar pushes down on athlete

15. Ball hits bat.
f. bat hits ball

16. Windshield hits bug.
g. bug hits windshield

17. Finger touches nose.
h. nose touches finger