Y9 space - gravity and universe - Matthew Baker | Library

Lesson objectives:
Use relevant units in appropriate places
Describe the layout of the universe
Show an understanding of the differing orbits of comets, moons and planets
Explain the effects of gravitational force

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What force acts between every object in the universe.

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Is this force:-

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What two factors affect the strength of gravity

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What happens to the strength of Earth's gravity as you go higher

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What word is used to describe the movement of objects in space around each other.

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The international space station orbits the earth. Is the international space station affected by earth's

The planets of the solar system:
The video below givs information about the planets in the solar.
A planet orbits the sun.
After the sun the planets are the next largest objects in the solar system.
The force of gravity causes planets to orbit the sun.
The time it takes for Earth to orbit once around the sun is a year 365.25 day (the 0.25 is the reason we have a leap year).

This interactive shows the scale of size of the universe.

https://htwins.net/scale2/

You can use the internet and presentations on the google classroom to answer the following question.

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Describe what is meant by 'the universe'.

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What is meant by 'the solar system'.

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What do planets orbit?

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What does the word 'elliptical' mean?

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Draw and label a diagram to show the orbit of a planet around the sun.

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What do moons orbit?

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Draw and label a diagram to show the orbit of a moon.

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What is a comet

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Describe the orbit of a comet

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Draw and label a diagram to show the orbit of a comet around the sun. You can attach images if you choose.

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What is th closest star to the sun?

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How many light years away is the closest star to the sun?

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What is the speed of light?

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How many meters are in a light year?

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What is the diameter of the milky way galaxy in light years?

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What is the name of the closest galaxy to the milky way?

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How far away is the closes galaxy to the milky way in light years?

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Describe what is meant by 'a galaxy'.

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Screen shot / copy and paste images to show the different types of galaxies.

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What is meant by 'the universe'.

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What is the age of the universe?

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What is the size of the universe?

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what is meant by 'artificial satellite'?

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When was the first artificial satellite launched into orbit?

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What was the name of the first artificial satellite to orbit the earth?

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What is the largest artificial satellite orbiting the earth

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Show some images and facts about the largest artificial satellite

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Show an image to show geostationary, polar and other types of orbit for artificial satellites

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What are the uses of artificial satellites?

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What type of orbit is needed for a GPS satellite (polar, geostationary, elliptical?)

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What is meant by 'natural satellite'

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What is the name of earth's natural satellite?

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What is the sun's largest natural satellite?

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What is furthest distance humans have ever travelled into space?

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In which year did humans first land on the moon?

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How many manned missions to the moon have taken place?

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When was the last manned mission to the moon?

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Why did the USA end its manned space missions to the moon?

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What is the name of the artificial object that has travelled furthest into space?

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Describe how far this object has travelled into space (i.e has it left /got near to the edge of the universe / galaxy / milky way?)

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What is a Nebula?

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How do star's form?

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Sketch the orbit of the planet, moon and comet (they should not all be circles)

https://play.kahoot.it/v2/lobby?quizId=c482c175-ac56-47e0-bc23-c08fe53ebe1d