Which of these is not a form of electromagnetic radiation?Group of answer choicesDC current from your car batteryx-rays in the doctor's officelight from your camp firetelevision signalsultraviolet causing a suntan

Determine which of the following is the best example of radiation. Air inside a hot air balloon loses thermal energy and the balloon dropsWater boils in a kettleYou warm your hands by sitting near a campfireI'm not sure

Which of the following forms of radiation can be shielded by Earth’s atmosphere?Group of answer choicesRadio wavesVisible lightAll of the aboveGamma rays

Which type(s) of electromagnetic radiation emitted by the Sun are absorbed byEarth’s atmosphere and do not reach Earth’s surface?A. long-wave radio waves, X-rays, and gamma raysB. short-wave radio waves and gamma raysC. infrared light, X-rays, and gamma raysD. X-rays20. A student is wearing a pair of sunglasses designed to reduce the glare fromreflected surfaces. When the student tilts her head to the side and back again, shenotices that the brightness of the blue sky changes in intensity.The student wonders why the intensity is affected by the orientation of hersunglasses. The light coming from the sky toward her sunglasses has most likelyundergoneA. absorptionB. diffractionC. polarizationD. refraction21. During an investigation, a student aimed a beam of light through a round openingin an opaque barrier. The light passing through the opening travelled to a screen ashort distance away. When the student repeated the procedure with the beam goingthrough a smaller opening, he found that the circular projection of light on thescreen became larger with less distinct edges.What is responsible for the change in characteristics of the circular projection?A. diffraction of lightB. reflection of lightC. refraction of lightD. polarization of light

Which of these electromagnetic waves is most energetic?*1 pointRadio waveInfraredGamma raysX-rays

Name the radioactive radiations which do not carry any charge.