4.20. Elastic Force http://www.ck12.org
a. elastic force.
b. rigid structure.
c. elastic limit.
d. breaking point.- Elastic rebound occurs when materials
a. return to their original shape.
b. stretch beyond their normal limit.
c. permanently change their shape.
d. become brittle and break. - Which type of material is most likely to withstand an earthquake without breaking?
a. rigid material
b. compressed material.
c. elastic material.
d. deformed material. - In an earthquake, seismic waves are generated by
a. rock displacement.
b. elastic rebound.
c. elastic breakage.
d. plastic deformation.
Review
- What is elasticity?
- How does an elastic material exert elastic force?
- Explain how elastic force is used to shoot an arrow from a bow.