Describe two ways light can be separated out into its component colors in detail for spectroscopic analysis
What will be an ideal response?
Newton passed light through a prism, where it is dispersed into the component colors. Most astronomers now use diffraction gratings, where the thousands of thin slits diffract the light, and interference forms a bright, detailed spectrum.
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Thin Lenses: A lab specimen is 15.2 mm from a converging lens. The image is 4.0 mm tall and 9.0 cm from the lens. How tall is the specimen?
A. 6.8 mm B. 5.4 mm C. 1.7 mm D. 0.68 mm
What do we mean when we say that the Sun is in energy balance?
A) The amount of energy released by fusion in the Sun's core equals the amount of energy radiated from the Sun's surface into space. B) The Sun maintains a steady rate of energy output into space. C) The inward force of gravity balances the outward push of pressure. D) The amount of energy contained in the Sun's magnetic field is in balance with the amount of energy going into solar activity such as sunspots and solar flares.
Two wheels have the same total mass M and radius R. One wheel is a uniform disk. The other is like a bicycle wheel, with lightweight spokes connecting the rim to a small hub. Which likely has the larger moment of inertia?
A. The solid disk. B. The wheel with spokes. C. The moment of inertia will be nearly the same for both. D. We need more information to answer.
How many large moons does Saturn have?
A) 4 B) 3 C) 2 D) 1 E) 0