Most geologists think that the movement of Earth's plates is cause by

a) conduction

b) earthquake

c) convection currents in the mantle

d) earth's magnetic field

2 What is chemical energy? A energy carried by light energy of moving electrons B holds protons and. c neutrons together in the nucleus of an atom D holds the atoms in the molecule together

How has sir isaac newton contributed to our understanding of forces?

If the mass of an object is 100kg and the acceleration due to gravity is 9.8m/s^2 what is the weight of the object

Is it possible that a 60kg boy riding a BMX bike could exert more pressure on a road surface than a 2500kg truck? Explain why.

The energy transformations in a car's engine are an example of multiple transformations. True or False?

Through how many volts of potential difference must an electron, initially at rest, be accelerated to achieve a wave length of 0.27nm? A) 4.6 V B) 0.046 V C) 0.27 V D) 4.6 MV E) 4.6 kV

A roller coaster track is a good example of the law of conservation of energy. Use this law to explain these facts about a roller coaster track. a. The largest hill for a roller coaster track is the first hill on the track.

Which statement about the spectrum of light that emerges from a prism is true? A. High-frequency colors bend more than low-frequency colors. B. High-frequency colors bend less than low-frequency colors. C.

What kind of process can create "rogue" waves? a. Constructive interference c. Refraction b. Destructive interference d. Standing waves

What are constellations? 1. Apparent groupings of stars and planets visible on a given evening 2. Groups of galaxies gravitationally bound and close together in the sky 3.