Question

Fill in the blanks:
The application of force on an object may change its ________
(A) Shape
(B) Direction of motion
(C) Speed
(D) All of the above

Answer 1

Hint : To understand the above statement, we have to recall a few examples of our daily life. What happens when a batsman hit a ball or when we start pedaling a cycle faster or when we push our shopping cart? For any such activity we require a physical effort which is known as force. These are all applications of force.

Complete Step By Step Answer:
It is easy to observe that if we apply a force on a shopping cart in a mall, it will start moving and we can move it faster or even change its direction by varying the magnitude and direction of applied force, Also when we pedal our cycle faster, its speed increases. And when a batsman hits a ball then the ball changes its direction of motion.
Hence it is clear that the application of force on an object can change its speed and direction of motion.
Now for shape, if we hold a spring from both of its ends and start pulling it outward, what will happen? And for another example if we press an inflated balloon what will happen?
We can easily observe that the applied force will change their shape.
Now, after understanding the above examples, we are in a position to conclude that the application of force on an object can change its shape, direction of motion and Speed.
Hence, from the given multiple choices “All of the above” is the correct answer.

Note :
It is now worth to note that one should not get confused between force and pressure, as there is very little difference between the two. Always remember the difference between the pressure and force. Pressure is said to be the force applied per unit area.