The Big Bang, Galaxies, and Telescopes

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0 [{"id":557027,"quiz_id":"27212","answer_id":null,"answerType_id":"3","created_at":"2018-08-31 17:42:24","updated_at":"2018-08-31 17:42:24","questionName":"The following are the stages in the evolution of a spiral galaxy. Put them in order.","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"The core forms first. The core contains old stars with very little dust and gas around them. In the middle is a black hole. The gore and black hole have a whole lot of gravity. This gravity allows it to suck in dust and gas form the space around it. As the gas collects, it begins to \"ball up\" due to gravity and form new stars. These stars and gas become the spiral arms.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557018,"quiz_id":"27212","answer_id":null,"answerType_id":"0","created_at":"2018-08-31 17:07:31","updated_at":"2018-08-31 17:14:22","questionName":"How long has the universe been here?","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"Our best estimate is that they universe is 13.8 billion years old. Earth has only been around for the last 4.5 billion years.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557026,"quiz_id":"27212","answer_id":null,"answerType_id":"1","created_at":"2018-08-31 17:37:50","updated_at":"2018-08-31 17:37:50","questionName":"Spiral galaxies are __________________ than elliptical galaxies.","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"Because they contain younger stars, spiral galaxies are brighter than elliptical galaxies.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557029,"quiz_id":"27212","answer_id":null,"answerType_id":"0","created_at":"2018-08-31 17:47:11","updated_at":"2018-08-31 17:47:11","questionName":"The stars in elliptical galaxies are old and surrounded by lots of gas and dust.","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"While the stars are old, there is very little dust and gas.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557023,"quiz_id":"27212","answer_id":null,"answerType_id":"0","created_at":"2018-08-31 17:32:31","updated_at":"2018-08-31 17:32:31","questionName":"How would you describe the temperature of the universe?","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"The universe is getting cooler. Scientists believe the universe will just keep on expanding and getting cooler until it finally goes dark.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557032,"quiz_id":"27212","answer_id":null,"answerType_id":"0","created_at":"2018-08-31 17:49:38","updated_at":"2018-08-31 17:49:38","questionName":"Which type of telescope uses mirrors to focus visible light into images?","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"In reflecting telescopes, curved mirrors are used to focus light to make images.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557024,"quiz_id":"27212","answer_id":null,"answerType_id":"0","created_at":"2018-08-31 17:35:11","updated_at":"2018-08-31 17:35:11","questionName":"How owuld you describe the stars in the arms of spiral galaxies?","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"The stars in the spiral arms are young. As the core pulls in dist and gas from its surroundings, it collects and new stars are born.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557019,"quiz_id":"27212","answer_id":null,"answerType_id":"3","created_at":"2018-08-31 17:21:50","updated_at":"2018-08-31 17:21:50","questionName":"Put the following events in order.","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557025,"quiz_id":"27212","answer_id":null,"answerType_id":"0","created_at":"2018-08-31 17:36:49","updated_at":"2018-08-31 17:36:49","questionName":"How would you describe the direction that stars in an elliptical galaxy move?","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"Because elliptical galaxies form through collisions, the stars move in all kids of directions. There is no uniform motion.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557030,"quiz_id":"27212","answer_id":null,"answerType_id":"1","created_at":"2018-08-31 17:48:21","updated_at":"2018-08-31 17:48:21","questionName":"Elliptical galaxies for through ___________________.","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"Elliptical galaxies form when spiral galaxies collide. ","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557021,"quiz_id":"27212","answer_id":null,"answerType_id":"1","created_at":"2018-08-31 17:25:44","updated_at":"2018-08-31 17:28:20","questionName":"The Cosmic Microwave Background is ____________ from the Big Bang.","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"The Cosmic Microwave is actually light form the Big Bang. It appears to be microwaves because of the Doppler Effect. It has been stretched causing the frequency to drop into the microwave portion of the spectrum.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557020,"quiz_id":"27212","answer_id":null,"answerType_id":"0","created_at":"2018-08-31 17:24:26","updated_at":"2018-08-31 17:24:26","questionName":"One of the reasons we know the universe is expanding is that the light from distant galaxies is being shifted towards the blue end of the spectrum.","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"The light from distant galaxies is being shifted towards the red end of the spectrum. As the galaxies around us move away, they stretch the wavelengths of light out. Red is the longest wavelength of light. This causes the light to appear redder than what it should.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557022,"quiz_id":"27212","answer_id":null,"answerType_id":"0","created_at":"2018-08-31 17:30:59","updated_at":"2018-08-31 17:30:59","questionName":"How would you describe the size of the universe today?","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"The universe is still expanding. In fact, it is expanding faster and faster.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557017,"quiz_id":"27212","answer_id":null,"answerType_id":"0","created_at":"2018-08-31 17:06:16","updated_at":"2018-08-31 17:13:08","questionName":"How you'd you describe the universe just before the Big Bang?","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"The universe was nothing but energy and it was all focused on a point smaller than an atom. Matter appears in the form of subatomic particles within the first second, but it would take 380,000 years for the universe to cool down enough for all of them to get together to form atoms.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":557016,"quiz_id":"27212","answer_id":null,"answerType_id":"0","created_at":"2018-08-31 17:03:52","updated_at":"2018-08-31 17:08:55","questionName":"About how long after the Big Bang did the first atoms form?","questionTimeSeconds":"0","questionTimeMinutes":"1","questionImagePath":null,"position":null,"explanation":"Atoms formed around 380,000 after the Big Bang. This was the same time the Cosmic Microwave Background was released.","question_score_id":null,"lang":"","questionAudioPath":null}]
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The following are the stages in the evolution of a spiral galaxy. Put them in order.

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The stars and gas collect and form the arms of the spiral.

The core begins to suck in gas and dust form the space around it.

The gas and dust collect and form new stars.

A core forms around a massive object like a black hole.


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