Question

name
class
date
chapter 12 forces and motion

1. circle the letter of the best answer. over extremely short distances, approximately how many times stronger is the strong nuclear force than the electric force of repulsion?

a. 10
b. 100
c. 1000
d. 10,000

1. compare and contrast the strong and weak nuclear forces.

Explanation:

Question 8

Step 1: Recall the relative strength of the strong nuclear force and the electric force of repulsion.

The strong nuclear force is approximately 100 times stronger than the electric force of repulsion over extremely short distances (within the nucleus).

Step 2: Match with the options.

Among the options a (10), b (100), c (1000), d (10,000), the correct approximation is 100.

• Similarities: Both are fundamental forces acting within the atomic nucleus. Both play roles in the stability and structure of atomic nuclei.
• Differences:
• Range: The strong nuclear force acts over an extremely short range (within the nucleus, ~10⁻¹⁵ m), while the weak nuclear force acts over an even shorter range (≈ 10⁻¹⁸ m).
• Strength: The strong nuclear force is much stronger (holds protons and neutrons together against electric repulsion), while the weak nuclear force is much weaker (involved in processes like beta decay).
• Role: The strong force binds nucleons (protons, neutrons) in the nucleus. The weak force is involved in particle interactions and decays (e.g., changing a neutron to a proton in beta decay).

Answer:

b. 100

Question 9