Instructions: On occasion, the notation 
will be a shorthand notation for 
.
Given that 
and 
, what is 
? ?
A.
B.
C.
D.
E.
Answer: D
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Consider a wire in a magnetic field, as shown in the following figure, with a current flowing downward through it. What will happen to the wire?
a.
The wire will be forced toward the north pole.
b.
The wire will be forced perpendicular to the plane of the magnetic field, into the page.
c.
The wire will be forced perpendicular to the plane of the magnetic field, out of the page.
d.
The current will cease flowing.
e.
The wire will be forced toward the south pole.
What is unusual about Triton?
A. It orbits its planet backward. B. It does not keep the same face toward its planet. C. It is the only moon with its own rings.
The figure below shows a planet traveling in a clockwise direction on an elliptical path around a star located at one focus of the ellipse. When the planet is at point A,
A. its speed is constant. B. its speed is increasing. C. its speed is decreasing. D. its speed is a maximum. E. its speed is a minimum.
Monochromatic light shines on a surface with work function 1.80 eV. The maximum energy of the emitted photoelectrons is 0.620 eV. What is the wavelength of the monochromatic light?
A. 200 nm B. 290 nm C. 689 nm D. 602 nm E. 512 nm