Learning motion of body rolling down the gravity chute_Lesson plan

Long-term plan unit:  

Dynamics

School:

Date:

Teacher name:   

Grade:  10

Number present:

absent:

Theme of the lesson   

Learning motion of body rolling down the gravity chute.

Learning objectives that are achieved at this lesson

• Define "projectile".
• Describe and draw the motion of a projectile.
• Mathematically represent the motion of a projectile

Lesson objectives

·         Describe and draw the motion of a projectile.

·         Mathematically represent the motion of a projectile

·         Use formula to calculate the range, total time of flight, vertical height.

Success criteria

·         Be able to attempt most of  the questions in the worksheet with ease

Language

objectives

Students to use the following terms:

Projectile, horizontal range, height, gravity, initial velocity

        Values instilled at

the less   on

Easy use of the calculator to substitute values in a formula          

Cross-curricular

 links

Maths, Geography in satellite launch

ICT skills

Edmodo, Phet animation

Previous learning

The definitions are revision from grade 9

Course of the lesson

Planned stages of the lesson

Planned activities at the lesson

Resources

Beginning

2 min

Teacher introduces the lesson.

Teacher  discusses the general objectives and learning outcomes expected in the lesson

Starter  5  min

10 min

20 min

(F) students to watch a you tube video ( let them watch only between the 3^rd and the 6^th minute of the video)

https://www.youtube.com/watch?v=GiiWsXtt5GE

(P) Worksheet 1

1.                  A bullet is fired from a height of 45 m and hits the ground 2000 m away.  With what        velocity does the bullet leave the gun?

2.                  A projectile is fired at 12.5 m/s at an angle of 53.1° with the horizontal from a point 75.0 m               above the ground.

a)   How long does it take to reach the ground?

b)  What maximum height does it reach?

c)   What horizontal distance does it travel before striking the ground?

d)  With what velocity does it strike the ground?

3.                  A projectile is fired at an angle ^θ above the horizontal from a point 80 m above the ground.          If the vertical component of the initial velocity is 30 m/s upwards,   a) how long does the projectile take to land?

      b) Calculate the angle θ if the projectile travels 576 m.

4.                  A stone is projected upwards at 30° to the horizontal from a point 175 m above the ground, with initial velocity 20 m/s.

a)   How long does the stone take to reach the ground?

b)  What is the range of the projectile?

c)   What is the velocity of the object when it strikes the ground?

 (G) Worksheet 2

PROJECTILE MOTION WORKSHEET 2

1.      A ball is kicked horizontally at 8.0 m/s from a cliff 80m high. How far from the base of the cliff will the stone strike the ground?

2.      How long will it take a shell fired from a cliff at an initial velocity of 800 m/s at an angle 30° below the horizontal to reach the ground 150m below?

3.      Jason Kendall throws a baseball with a horizontal component of velocity of 25 m/s. It takes 3.00s to come back to its original height. Calculate its horizontal range, its initial vertical component of velocity and its initial angle of projection.

4.      An egg is thrown horizontally off the roof of SI, which is 60 meters high, with an initial velocity of 6.5 m/s. How long does it take to hit the ground? How far does it go in the x direction?            

5.      A diver jumps UP off a pier at an angle of 25^o with an initial velocity of 3.2 m/s.  How far from the pier will the diver hit the water  (Assume the level of water is the same as the pier)

6.      Wile E. Coyote is holding a “HEAVY DUTY ACME_TM ANVIL” on a cliff that is 40.0    meters high.  The Roadrunner (beep-beep), who is 1.0 meter tall, is running on a road toward the cliff at a constant velocity of 10.0 m/s.  Wile E. Coyote wants to drop the anvil on the Roadrunner’s head. How far away should the Roadrunner be when Wile E. drops the anvil?

7.      A bullet is fired at an angle of 60^o with an initial velocity of 200.0 m/s.  How long is the bullet in the air? What is the maximum height reached by the bullet?  

8.      A bullet is fired at an angle of 45^o.  Neglecting air resistance, what is the direction of acceleration during the flight of the bullet?

a)   upward                                                        c) dependent on the initial velocity

b)  downward                                                   d) at a 45^o angle

9.      A golfer drives her golf ball from the tee down the fairway in a high arcing shot.  When the ball is at the highest point of its flight:

a.       the velocity and acceleration are both zero

b.      the x-velocity is zero and the y-velocity is zero

c.       the x-velocity is non-zero, but the y-velocity is zero

d.      the velocity is non-zero, but the acceleration is zero

10.  A bullet is fired horizontally from a gun.  At the same time a similar bullet is dropped from the same height.  The fired bullet will:

a)   hit the ground first                           c) hit at the same time as the dropped bullet

b)  hit the ground second                      d) never hit the ground

YouTube video

Student Worksheet

    [1]

Power point presentation in edmodo and on the board

https://phet.colorado.edu/sims/projectile-motion/projectile-motion_en.html

Worksheet

   [2]

End

3min

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

HW3.1,1