Lesson 2 — 4.1 Speed

• Natuurkunde / Scheikunde
• Middelbare school
• havo
• Leerjaar 2

Lessonplan

Lesson plan

Opening — 10 min

- Video Hyperloop

Class phase — 20 min

- discussing the worksheet

- what is speed?

- formula for speed + practice exercise

- average speed + practice exercise

Solo phase — 15 min

- working on the homework — workbook §4.1 — read §4.2 precision and accuracy

Closing — 5 min

- which is the correct formula for speed a, b or c?

- what have you learned? + goals

- homework

Learning goals

Lesson plan

• Recap
• Discussing the worksheet
  
•  What is speed?
• What is average speed?
• Working on exercises

Goals

• Name the formula for speed
• Name the unit of speed
• Apply the formula for speed
• Average speed

What did we do yesterdays lesson?

Class Rules

When you enter the class

• Phone in phone hotel
  
• Go to your seat
  
• Take your books and note book out of your bag and put them on your desk
  

During the class

•   When someone speaks, you  listen.
  
•  Two modes of working:                1. Silent      2. Discussing with your neighbour

• Disturb the class: you come to school the next day at 8 and work on extra work.
  

The scientific method

Prediction

Question

Test  the prediction

(Experiment)

Observation

Conclusion

Question — Do banana peels float in water?

Prediction — Yes/No

Test Prediction — Throw banana peel in water

Observation — Watch

Conclusion — Yes/No

Question — Do all fruit peels float on water?

The materials you need?

The materials you need

• Your books (tekst book, workbook)
• Your notebook:  A4 with blocks
• A calculator
• A protractor

Class Phase

Discussing the worksheet

What is speed?

Speed

Speed  is a measurment of how fast you are moving per hour or per second. 

1. 5 kilometers per hour (5 km/h)

2.3 meter per second (3 m/s)

The formula for speed

Speed=​time​​distance​​

v=d/t

Important

Speed=​time​​distance​​

The unit of speed

km/h  (kilometer per hour)

m/s     (meter per second)

The formula for speed

Tekst

v=d/t

Exercise

1. Ron walks 22.5 km in 5 hours, find his speed.

2. A train covers 168 km in 4 hours. Find its speed.

Solo Phase

The formula for speed: choose the right answer

A 

B

C

Speed=​time​​distance​​

Speed=Distance⋅Force

Speed=distance⋅time

The formula for speed

A 

B

C

Speed=​time​​distance​​

Speed=Distance⋅Force

Speed=distance⋅time

Constant or steady speed

Constant speed is where the speed is the same throughout the journey.

Average speed

​The average speed is the total distance traveled by the object in a particular time interval.

Average speed = total distance: total time

 

Exercise

 A car travels 3 hours. It travels 30 miles in the first hour, 45 miles in the second hour and 75 miles in the third hour. Find its average speed.

What have you learned?

Goals

• Name the formula for speed
  
• Name the unit of speed
  
• Apply the formula for speed
  
• Explain what is meant by average speed
  

Next lesson

Homework

Read: Textbook 4.1

Do: Workbook exercises 4.1