topic 2 unit 5

Question 1

what is a telescope

Answer 1

is used to magnify objects at great distances.

Question 2

what does a simple telescope magnify objects with

Answer 2

an ocular lens and objective lenses

Question 3

what did the mathematics of the eclipse discover?

Answer 3

the speed is never the same anywhere in the eclipse

Question 4

what is the ocular lens

Answer 4

is the large one at the front of the telescope

Question 5

what is the eypiece

Answer 5

is though which you can view the magnified objects

Question 6

what were Galilieos observations and theories on space?

Answer 6

he observed that Jupiter is accompanied by four small stats that move back and forth across it. He concluded that Jupiter is orbited by four moons.

Question 7

What did Galileo’s observations support

Answer 7

Copernicus’s sun-centred model but not ptolemy’s Earth-centred model

Question 8

What is one example of the moons that Galileo observed

Answer 8

Jupiter

Question 9

what does the earth centred model assume?

Answer 9

that all celestial bodies orbit earth, Jupiter’s moons orbit Jupiter and not earth, this led to the decisions

Question 10

how do you build a powerful telescope?

Answer 10

you need to increase its resolving power

Question 11

what is resolving power

Answer 11

the kind of power is the fineness of detail the telescope can produce of the objective lens

Question 12

A telescope with a hammer diameter objective lens can what?

Answer 12

magnify as much as you want

Question 13

what is a refracting telescope

Answer 13

has a lens for there objective

Question 14

what is a reflecting telescope

Answer 14

telescopes that has mirrors as objectives

Question 15

who was ptolemy?

Answer 15

he corrected Aristotle’s earth centred model so that the planets were attached to small spheres called “Epicycles” which were attached to the main sphere

Question 16

who was Copernicus?

Answer 16

he proposed the sun-centred model in which the sun was in the centre, and the earth, moon, and planets resolved around it

Question 17

who was lippershey

Answer 17

he invented the telescope in 1608

Question 18

who was Galileo

Answer 18

agreed with Copernicus’ sun centred model and improved the telescope and observed different planets along with the moon and the sun

Question 19

who is newton

Answer 19

he designed the reflecting telescope to solve the problem with the refracting telescope. He also introduced the concept of universal gravitation and stated that “all objects attract other objects”

Question 20

who was Kepler

Answer 20

he fixed the problem with the sun-centred model. He concluded that the planets orbits are elliptical rather than circular

Question 21

what do you use to measure a altitude

Answer 21

astrolabe

Question 22

how do you measure azimuth

Answer 22

compass

Question 23

what is newtons law

Answer 23

stated that there is a gravitational force between all objects that pulls them together. With no force acted on the object it will move in a straight line at a constant speed.