In a gas kept at a constant temperature, all molecules move with the same speed.

An electronic instrument that measures power and frequency of electronic signals is the A. spectrum analyzer. B. datalogger C. multimeter D. nanometer Student Answer: C

A wire of length L m has 2 ohms resistance. It is stretched twice its original length and its area becomes half of its original area. What is its new resistance?

Evaluate how a reduction in the number of condensation nuclei in the tropo- sphere would affect precipitation.

What happens with alpha, beta, and gamma radiation?

What is the correct definition of solution? A. a graduated substance B. a homogeneous mixture C. a primary mixture of elements D. a heterogeneous mixture

When you look into a clear pond, a fish may appear to be in a different position than it actually is. What is this caused by? A. diffraction B. dispersion C. refraction D. reflection,

How long would it take to drive to alpha centauri (4.4 light-years away) ?

A type of fault where the hanging wall slides upward

How was dyslexia treated in the past and how is dyslexia treated today?

The work of Charles Kuen Kao is likely to have been most influenced by the work of which of the following scientists? A. Galileo Galilei B. Christian Doppler C. Sir Isaac Newton D. Ibn al-Haytham