An arrow is released from a stretched bow: Water kept at a high flows through a pipe into the tap below.

An arrow is released from a stretched bow: A compressed spring is released.

An arrow is released from a stretched bow: Where did the energy required to cause the motion of the objects come from?

An arrow is released from a stretched bow: If the objects were not brought in those states, would they have moved?

An arrow is released from a stretched bow: Which words describe the state of the object in the above examples?

Answer the following questions: Classify the following into potential energy and kineti energy: (1) Water stored on the top of a hill (2) An arrow released from a stretched bow (3) A stretched spring (4) A revolving electric fan.

Write proper words from the following group of words in the blanks and rewrite the completed sentences: Water in the waterfall flows from a higher level to the lower level because of -----

A stone is released from the top of a tower 90m high. At the same instant a second stone is projected vertically upwards from the ground with a velocity of 30 m//s . When and where will the two stones meet?

Answer the following questions A plane mirror is kept at the bottom of a trough with water in it as show in the following figure . The ray of light emerging from a source at the point S outside the trough, reaches the point A on the surface of water. Draw a neat ray diagram to show the subsequent path of light and complete the ray diagram.

Find the odd one out and give the reason: A stretched spring, A body placed at some height from the ground, A stretched bow, a bullet fired from a gun.

A device used for measuring the rate of flow of liquid through pipes is called………..