<plain your observations. What did you observe as you completed the task of measuring shadows each time? What
hanged as you repeated your attempts? Submit your data chart here.
1.

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

When an object is heated it contracts. a. true b. false

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?