Refraction or the bending of waves takes place when a light wave changes A) color. B) frequency. C) intensity. D) speed.

Write three things that . transfer energy by heating or light ... transfer energy by sound ... use energy transferred by electricity

1. The sun appears to move across the sky, because the earth spins on its axis. To a person standing on the earth, the sun subtends an angle of θsun = 9.28 * 10-3 rad. 2).

Explain why it is not advisable to use small values of i in performing triangular glass prism experiment

Many appliances in your home use electrical energy. What other forms of energy are produced when the appliances are turned on? Name at least three different appliances and the types of energy they produce.

How do newton's laws apply to an egg drop

Objects can be accelerating and traveling at constant velocity at the same time. True or False

What kind of star gives rise to a type i supernova? a. white dwarf stars b. massive main sequence stars c. red giant stars?

Example of an object in motion

A proton and an alpha particle are momentarily at rest at a distance r from each other. They then begin to move apart. Find the speed of the proton by the time the distance between the proton and the alpha particle doubles.

Why is it a good idea to extend your bare hand forward when you are getting ready to catch a fast-moving baseball? a. So you can catch the ball with a stiff arm, increasing the time to slow the ball thus deceasing the force. b.