Cooking pasta in boiling water is an example of A. convection B. conduction C. radiation D. albedo
Why does the Moon look different every night?
How does mixing colors of light differ from mixing colors of paint? Light mixing creates darker colors Paint mixing results in bright colors Light mixing results in white light Paint mixing creates lighter colors
Light travels 9.45cdot 10^15 meters in a year.There are about 3.15cdot 10^7 seconds in a year How far does light travel per second? Write your answer in scientific notation. square meters
The 3 K cosmic microwave background is the evidence of existance of dark energy. accelerating expansion of the universe. big bang.
Which of the following is true for an electromagnetic wave? It requires a medium to travel. None of these are true for an electromagnetic wave. It is a transverse wave. It is a longitudinal wave
What happened with the canned drink? The sand gained energy released by the cold canned drink. The sand released energy that was then gained by the cold canned drink. The sand and the canned drink both had a total gain of energy. The sand and the canned drink both had a total loss of energy. Neither the sand nor the canned drink had a change in energy.
When you hold a spherical concave mirror with a 48.2-cm radius of curvature 39.5 cm in front of your face, you see an image of your face that is 61.8 cm in front of the mirror. What is the magnification of this image? -0.639 -1.56 1.56 0.639
Fill in the Blank Question The square is the largest object in the solar system.It is about 330,000 times as massive as square and contains more than square percent of all the mass in the solar system.
A candle is 11.0 cm from a converging lens, and an inverted . real image is created 88 .0 cm away from the lens.What is the magnification of the image? -0.125 -8.00 +0.125 +8.00
When light is reflected from a smooth, plane mirror Multiple Choice the angle of reflection is the same as the angle of incidence. most of the light is scattered into multiple directions. the light is changed to a lower frequency. the wave characteristics are predominant.
When a light wave approaches a glass-air interface from the glass side at the critical angle, the angle of refraction is . __ $43^{\circ }$ $48^{\circ }$ o $45^{\circ }$
Which of the following will induce a greater emf in the secondary coil of a generator? A constant potential in the primary coil. A greater number of loops in the primary coil. A fewer number of loops in the secondary coil. A smaller area in the secondary coil.
Which of the following is accurate about the Coriolis Effect? The apparent deflection of objects is zero at the equator. The apparent deflection of objects is greatest at the equator. The apparent deflection of objects is the same at all locations on the globe. The apparent deflection of objects is the least at the Poles.
The insulation in walls uses which of the following methods to prevent heat transfer? (select all that apply) A convection B radiation C conduction
Heat that we can feel and is measurable is called: Heat cannot be measured Illogical Latent Sensible
The period of the moon's rotation on its axis is the same as its revolution around the Earth much longer than its revolution around the Earth longer or shorter depending on what part of the year we are in much shorter than its revolution around the Earth
33. What are the two ways that light quality can be characterized? direct or indirect light bright and dim light hard and soft light round and curved light
A soccer player runs up behind a soccer ball (of mass 0.50 kg) that is moving at $3.5m/s$ in the same direction as the player. The soccer player kicks it and the ball moves with a speed of $13.5m/s$ What is the magnitude of the impulse (in $kgm/s)$ delivered to the soccer ball? A 5.0 B 7.5 C 10 D 15
What path can a light ray travel through the glass core of an optical fiber? angle of incidence angle of refraction light coupling mode
