1. Look at these pictures, guess the theme of the lesson and tell

2. Mechanical motion. Speed.
Teacher: Klimenko E.A.

3. Vocabulary revision: match the word and its translation
Путь
Точка отсчета
Distance
Displacement
Trajectory
Reference system
Reference point
Material point
Mechanical motion
Speed, velocity
Cargo
Система отсчета
Скорость
Траектория
Перемещение
Механическое движение
Груз

4. Vocabulary revision: match the word and its definition
is the motion when the object or its parts change the position during some time.
is total distance divided by total time.
is the motion when the objects passes equal distances for equal time.
is the motion when the object passes different distances for equal time
Vocabulary revision: match the word and its definition
Mechanical motion
Speed
Uniform motion
Non-uniform motion

5. Distance Displacement Material point Trajectory Reference object
is a part of trajectory that objects travel for some time.
is a directed distance connecting initial and final position.
is an object the sizes of which can be neglected.
is the track left by an object in the form of a line.
is the point that is thought motionless.
is the system of coordinates, which shows the reference object and hours.
Distance
Displacement
Material point
Trajectory
Reference object
Reference system

6. 10-9 correct answers – “5” 8-7 correct answers – “4”
Put marks.
10-9 correct answers – “5”
8-7 correct answers – “4”
6-5 correct answers – “3”

7. Practice work You are in the groups of three.
Director - checks the whole group’s work
Assistant - carries the experiment
Secretary - writes on the paper results
Think over the roles in a group.

8. Practice work Find speed of the object. no cargo – 1st group,
1cargo – 2nd group,
2cargo – 3rd group,
3 cargo - 4th group
Write the problem on the A3 paper. Stick the title of the work.

9. Practice work Objectives: to find speed of the object practically.
Devices: track, car, stopwatch, meter rule.

10. Conclusion 1. Write one thing you liked at the lesson.
2. Write two formulae studied at the lesson.
3. Write three definitions you learnt at the lesson.