Which would burn your skin the most?
A) 100 g of water at 100°C
B) 100 g of steam at 100°C
C) both equal
Answer: B
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What will you see with the following type of optic: Convex lens
A. Image is smaller |
B. Image is the same |
C. Image is larger |
If you shine a flashlight from one wall to an opposite wall inside a spaceship drifting without acceleration far from gravitational influences, the beam of light will travel
A) in a straight-line path. B) in a parabolic path. C) along the arc of a circle.
The search for extrasolar planets has uncovered a phenomenon astronomers call a "hot Jupiter." If our Solar System had one, where would it orbit, relative to the other planets?
What will be an ideal response?
The magnetic force on a current-carrying wire in a magnetic field is the strongest when
A) the current is in the direction of the magnetic field lines. B) the current is in the direction opposite to the magnetic field lines. C) the current is at a 180° angle with respect to the magnetic field lines. D) the current is perpendicular to the magnetic field lines. E) the current is at a 0° angle with respect to the magnetic field lines.