1. Created for CVCA Physics By Dick Heckathorn 22 November 2K + 4
NTQ’s Chapter 6
Created for CVCA Physics By
Dick Heckathorn
22 November 2K + 4

2. Freaction Fa on e Fg Fearth on apple
If we call the gravitational force exerted on the apple action,
What is the reaction force according to Newton’s 3rd law?
Freaction
Fa on e Fg
Fearth on apple
NTQ-6

3. a. Arnold? b. Susie? c. both the same?
Arnold Strongman and Suzie Small pull on opposite ends of a rope in a tug of war. The greatest force on the rope is by:
a. Arnold?
b. Susie?
c. both the same?
NTQ-4

4. NTQ-5

5. For every force there exists an equal and opposite force.
Consider action forces in the case of a rock falling under the influence of gravity.
If action is considered to be that of the earth pulling down on the rock, can you clearly identify the reaction force?
Fe on rock
Frock on e
NTQ-1

6. d. …it depends on other factors
If a Mack truck and a Volkswagen have a head-on collision, which vehicle will experience the greater impact force?
a. the Mack truck
b. the Volkswagen
c. both the same
d. …it depends on other factors
NTQ-2

7. Does the scale read… 5 N? 10 N? Zero?
NTQ-3

8. The following was taken from Science Teacher Magazine
the April 1993 issue of the
Science Teacher Magazine
Newton's third law of motion: For every force there is an equal and opposite force.

9. To demonstrate this concept, fasten three spring scales together in a line.
Have one person hold the scale on one end while another person pulls on the scale at the other end.

10. The scale in the middle registers the combined force of the readings on the other two scales.
Explain

11. Setting up the apparatus, exerting forces on both ends will show:
The answer is not correct.
Setting up the apparatus, exerting forces on both ends will show:
The readings to be the same on all three scales.

12. That’s all folks!