When a person whirls a rock on the end of a string and maintains it in uniform circular motion, the force exerted on the rock is most accurately referred to as?

1100

---

The throbbing caused by sounds of slightly different frequencies that results because of periodic constructive and destructive interference is called:

1101

---

If a dog rolled around on a carpet and gets statically and a flea jumps on it will the flea get electrocuted?

980

---

Why does heated air expand?

965

---

Who determined that the square of a planets period is proportional to the cube of its average distance from the sun?

949

---

Why does a tea kettle sing?

954

---

What is astrophysics?

993

---

the fundamental forces of nature are most correctly given as?

924

---

What is a crest?

1054

---

What is a thermal transformation?

1068

---

What evidence is there supporting the big bang theory?

914

---

If the moons orbit is inclined slightly relative to the earths orbit what effect does this have on eclipses?

1090

---

How are amps and watts related?

1047

---

A color made from the addition of two primary colors is called:

1130

---

what is the name of the device that is made by combining two basic types of solid state rectifiers allowing the device to both rectify and amplify a current?

975

---