Lesson plan for 10th frade physics ''Uniform motin. + problems ''

Class	10th grade			Date
Lesson	Physics
Period	1 hour
Subject	Uniform motion
Aim	To study Uniform motion
Materials	Mechanics
Methods and Techniques
Explaining, solving exercises
General Review of Previous Lesson :
Ask a few questions about last topic as : Uniform motion
The following equations of kinematics are used to define uniformly accelerated motion: where a is the constant acceleration v0 is the initial velocity v is the final velocity x is the displacement t is the time The change in the position of an object is called the displacement which is also a vector quantity. Displacement is defined by  where  is the position vector at time  and is the position vector at time  1. Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving at 60 km/h and the other is moving at 40 km/h mph. In how many hours will they meet? (1.5) 2. A car travels 40 kilometers at an average speed of 80 km/h and then travels 40 kilometers atan average speed of 40 km/h. The average speed of the car for this 80-km trip is: (53 km/h) 3. In astronomy the light-year is used as a unit of distance. It is the distance that light can travel in one year. (For instance, our galaxy, the Milky Way, is about 150 000 light-years across). If light travels at a constant speed of 300 000 km/s, Calculate 1 light-year in km? 4.A car moving with an initial velocity of 25 m/s north has a constant acceleration of 3 m/s2 south. After 6 seconds its velocity will be: 5.A car, initially at rest, travels 20 m in 4 s along a straight line with constant acceleration. The acceleration of the car is: 2.5m/s2
Evaluation:		Ask guestions and give marks

1. Two automobiles are 150 kilometers apart and traveling toward each other. One automobileis moving at 60 km/h and the other is moving at 40 km/h mph. In how many hours will they meet?

2. A car travels 40 kilometers at an average speed of 80 km/h and then travels 40 kilometers at an average speed of 40 km/h. The average speed of the car for this 80-km trip is:

3. In astronomy the light-year is used as a unit of distance. It is the distance that light can travel in one year. (For instance, our galaxy, the Milky Way, is about 150 000 light-years across). If light travels at a constant speed of 300 000 km/s, Calculate 1 light-year in km?

4.A car moving with an initial velocity of 25 m/s north has a constant acceleration of 3 m/s² south. After 6 seconds its velocity will be:

5.A car, initially at rest, travels 20 m in 4 s along a straight line with constant acceleration. The acceleration of the car is:

1. Two automobiles are 150 kilometers apart and traveling toward each other. One automobileis moving at 60 km/h and the other is moving at 40 km/h mph. In how many hours will they meet?

2. A car travels 40 kilometers at an average speed of 80 km/h and then travels 40 kilometers at

an average speed of 40 km/h. The average speed of the car for this 80-km trip is:

3. In astronomy the light-year is used as a unit of distance. It is the distance that light can travel in one year. (For instance, our galaxy, the Milky Way, is about 150 000 light-years across). If light travels at a constant speed of 300 000 km/s, Calculate 1 light-year in km?

4.A car moving with an initial velocity of 25 m/s north has a constant acceleration of 3 m/s² south. After 6 seconds its velocity will be:

5.A car, initially at rest, travels 20 m in 4 s along a straight line with constant acceleration. The acceleration of the car is:

1. Two automobiles are 150 kilometers apart and traveling toward each other. One automobileis moving at 60 km/h and the other is moving at 40 km/h mph. In how many hours will they meet?

2. A car travels 40 kilometers at an average speed of 80 km/h and then travels 40 kilometers at

an average speed of 40 km/h. The average speed of the car for this 80-km trip is:

3. In astronomy the light-year is used as a unit of distance. It is the distance that light can travel in one year. (For instance, our galaxy, the Milky Way, is about 150 000 light-years across). If light travels at a constant speed of 300 000 km/s, Calculate 1 light-year in km?

4.A car moving with an initial velocity of 25 m/s north has a constant acceleration of 3 m/s² south. After 6 seconds its velocity will be:

5.A car, initially at rest, travels 20 m in 4 s along a straight line with constant acceleration. The acceleration of the car is: