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Solution to Exercise 1 on page 74 Physics 10 textbook
Problem Statement:
Highlight the characteristics (direction, magnitude, point of application) of the elastic force exerted by:
a) Springs
b) Rubber bands, steel wires
c) Contact surfaces.
Explanation:
Spring:
- Placement: At both ends of the spring
- Orientation: Aligned with the spring axis
- Direction: Opposite to the direction of the reverse elastic force caused by external deformation force
Rubber cord, steel wire:
- Placement: At both ends
- Orientation: Same direction as the deformation force
In the afternoon: opposite to the direction of the reverse elastic force compared to the direction of the external force causing deformation
Tangent plane:
- Point of placement: on the tangent plane
- Direction: aligned with the force causing deformation
- Direction: opposite to the direction causing deformation
Solving Exercise 2 on page 74 of Physics 10 Textbook
Problem statement:
State the Law of Collision.
Solution: The magnitude of the elastic force of a spring is directly proportional to the spring's deformation.
Exercise 3 on page 74 of Physics 10 textbook solution
Problem statement:
Note:
To stretch a spring with a stiffness of k = 100N/m by 10 cm, how much weight should be hung on it?
A. 1000 N; B. 100 N;
C. 10 N; D. 1N.
Solution:
The answer is option C.
Solution to problem 4 on page 74 of Physics textbook for grade 10
Problem statement:
A spring with natural length of 15 cm is fixed at one end, while the other end is subjected to a pulling force of 4.5 N. At this point, the spring elongates to 18 cm. What is the stiffness of the spring?
Option A: 30N/m, Option B: 25N/m
Option C: 1.5 N/m, Option D: 150N/m
Explanation:
The correct answer is option D.
Solving Exercise 5 on page 74 of Physics 10 textbook
Problem Statement:
A natural-length spring measures 30cm. When compressed, it extends to 24cm with a force of 5N. What is the length of the spring when compressed with a force of 10N?
A. 18cm B. 40cm
C. 48cm D. 22cm
Solution:
Answer A.
Solving Exercise 6 on page 74 of Physics 10 textbook
Given the scenario:
a) Calculating the spring constant:
b) Determining the unknown weight:
Here are the solutions:
