Study the effects of force on the state of motion

Study the effects of force on the state of motion

Things required : A table tennis ball and a wooden board 

---

Method:

1. Place the table tennis ball on the floor. The ball does not move on its own, I.e. , 

it is in a state of rest. Now, push the ball forward with a small force. 

Observation 1 :

The ball starts moving 

---

2. Now, push the wall with both hands ✋🖐👋.

Observation 2 :

No matter how hard you push, the wall does not move. 

Calclusion: from observation 1 and 2, we can conclude that a force can make an object at rest to move. However, the force applied may not always be large enough to move an object as seen while pushing the wall. 

---

3. Again, take the ball and give it a push.
When the ball starts moving, push it
again in the same direction in which it
is moving

Observation 3: 

The
speed of the ball Changing speed of
increases
a moving ball
Conclusion: If a force is applied on an object
along the direction of motion, its speed
increases.

---

4. When the ball is moving, put a sheet of
paper in the path of the ball for a few
seconds.

Observation 4:

 The ball slows down.
Reason: The paper applies a force on the
ball in a direction opposite to its direction
of motion. This causes the speed of the
ball to decrease.

Thanks🙏🙇