IX. Answer the following in8/10 sentences :
1)Give two examples each of the situations in which you push or pull to change the
state of motion of objects?
2) At an individual level how can you help to reduce air pollution?
3) Write about global warming?
4) Describe the threat of the beauty of the Tajmahal?
Answer:
Two examples of push force are as follows:
1. A heavy box at rest is pushed to move it from one room to another. This changes the state of motion of the box.
2. A player pushes a football using his foot. This changes the state of motion of the ball.
Two examples of pull force are as follows:
1. Rope is pulled to draw water from a well. This changes the state of motion of the water bucket.
2. A drawer is pulled to open it. This changes the state of motion of the drawer.