If an object is moving, it has energy. We call energy of motion as
Answer: kinetic energy
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A compass with its needle pointing north sits on a table. We place a straight wire over the compass parallel to its needle. We then send a conventional current running south to north through the wire. How does the compass needle respond to the current?
A. The compass needle deflects toward the west. B. The compass needle deflects toward the east. C. The compass needle does not do anything. D. The compass needle turns around to point south.
The greater the mass of a star, the _______________ it moves through its life cycle
a. faster b. slower c. Neither of these; mass has no effect on the life cycle of a star.
A magnetic field of 104 A/m is produced by a coil. What is the intensity of magnetization of the following materials placed into the coil?
(a) Silver (b) Vacuum (c) Air (d) Palladium (e) Nickel
The spacing of ruled lines on a diffraction grating is 1,770 nm. The grating is illuminated at normal incidence with a parallel beam of white light in the 400 nm to 700 nm wavelength band
The longest wavelength that appears in the third order spectrum is closest to: A) 590 nm B) 570 nm C) 550 nm D) 530 nm E) 610 nm