“The Relationship Between Bond Valuation and Interest Rates: Exploring the Sensitivity of Longer-Term Bonds”

Why are longer-term bonds more sensitive to changes in interest rates than shorter-term bonds? Describe the four key bond valuation relationships.
CIte from book only
Financial Management: Principles and Applications
Sheridan Titman, Arthur J. Keown & John D. Martin, 2018
Pearson
ISBN.13: 978-0-134-41721-9