ОГН_10_grade_Satellites_lesson plan

Long-term plan unit:

School:  

Date:

Teacher name:

Grade: 10

Number present:

absent:

Theme of the lesson

Satellites and speed of the orbiting object

Learning objectives that are achieved at this lesson (Subject Programme reference)

·         10.1.2.2 – to understand the law of universal gravitation and describe the motion of spacecrafts.

Lesson objectives

Learners be able to:analyse circular orbits in inverse square law fields by relating the gravitational force to the centripetal acceleration it.

·         describe motion of spacecraft

·         analyse circular orbits in inverse square law fields by relating the gravitational force to the centripetal acceleration it.

·         show an understanding of geostationary orbits and their application.

Success criteria

Be able to do 80% of the questions in the worksheet

Language objectives

Subject-specific vocabulary & terminology:

Students will use the following terms-

·         Launching a satellite

·         Powering a satellite

·         Geostationary satellites for communications

·         the speed of the orbiting object

Cross-curricular links

Mathematics (use of formula)

ICT skills

Internet

https://www.youtube.com/watch?v=hUJb35RGpY8

Previous learning

Dynamics – Newton’s law of gravitation; orbits, spacecraft motion

 Dynamics – circular motion, centripetal force.

Course of the lesson

Planned stages of the lesson

Planned activities at the lesson

Resources

Beginning

4 min

1.      The teacher introduces the lesson and states the objectives. The teacher may also check the homework from the previous lesson

·     Newton’s law of gravitation

·     Acceleration due to gravity

·     Centripetal force and gravity

·     Gravitational field strength

Middle

10 min

3 min

3 min

15 min

3 min

2.      The teacher to lead in the discussion using a power point presentation on the following:

·         How earth satellites are launched

·         The path of a satellites

·         Energy of a satellites

·         Derive the orbital velocity of a body to orbit the earth.

3.      Students to watch a short video on orbit velocity.

https://www.youtube.com/watch?v=hUJb35RGpY8

4.      An additional material №1

Geostationary satellite is one that is always above a certain point on the Earth (as the Earth rotates about its axis.)

For a geostationary orbit: T = 24 hrs, orbital radius (& height) are fixed values from the centre of the Earth, angular velocity

€ ω is also a fixed value; rotates from west to east. However, the mass of the satellite is NOT a particular value and hence the KE, GPE, and the centripetal force (FC) are also not fixed values {i.e. their values depend on the mass of the geostationary satellite.}

A geostationary orbit must lie in the equatorial plane of the earth because it must accelerate in a

plane where the centre of Earth lies since the net force exerted on the satellite is the Earth's

gravitational force, which is directed towards the centre of Earth.

5.      Students to answer questions from a worksheet

1.      For a satellite in a parking orbit round the earth ( geostationary satellite), calculate:

(Use radius of the Earth = 6.4x10⁶, mass of the Earth = 6.0x10²⁴ kg, G = 6.7x10^-11N m² kg^-2)

a.       the radius of orbit

b.      the height above the Earth

c.       the speed in this orbit

2.      Determine the escape velocity from the Earth. (G = 6.67 ´ 10^-11 N m² kg^-2, mass of the Earth = 6.0 ´ 10²⁴ kg, Radius of the Earth, R_E = 6.4 ´ 10⁶ m)

6.      An additional material №2

Students to watch a short video on escape velocity.

PowerPoint presentation

Whiteboards, smart board

https://www.youtube.com/watch?v=hUJb35RGpY8

Worksheet 1

End

2min

At the end of the lesson, learners reflect on their learning:

-       What has been learned

-       What remained unclear

-       What is necessary to work on

Home work

Reflection

Differentiation – how do you plan to give more support? How do you plan to challenge the more able learners?

Assessment – how are you planning to check students’ learning?

Health and safety regulations

Most learners should be able to recall the main aspects of the specified areas

Some learners will not be able to attempt all the questions.

Learners group according to their ability. Learners who are able will be given extra work.

Use of AfL, Q/A and FA

Students to place their bags in designated areas to avoid minor accidents.

Reflection

Were the lesson objectives/learning objectives realistic? Did all learners achieve the LO?

If not, why?

Did my planned differentiation work well?

Did I stick to timings?

What changes did I make from my plan and why?

Use the space below to reflect on your lesson. Answer the most relevant questions from the box on the left about your lesson. 

Summary evaluation

What two things went really well (consider both teaching and learning)?

1:

What two things would have improved the lesson (consider both teaching and learning)?

1:

what have I learned from this lesson about the class or achievements/difficulties of individuals that will inform my next lesson?