A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls _________?

A. behind him
B. in front of him
C. into his hand
D. by his side

Submitted by: Malik Asghar Hussain

The moment ball is thrown, it is moving with the velocity of the car. According to the inertia of motion it will continue to move in the same direction with the same velocity. As the ball is moving up and the down it will maintain its forward motion but practically it is not possible to neglect the resistance caused by air friction. So, the ball will fall behind him. Inertia is the resistance of any physical object to a change in its state of motion or rest, or the tendency of an object to resist any change in its motion.

Related Mcqs:

Lead ball falls through water more slowly than through air because __________?
A. The value of ‘g’ is less in water
B. Density of air is less than that of water
C. Of the viscous force in water
D. Of The surface tension of water
A man is standing on a weighing machine in a lift which is moving. The weighing machine will slow MINIMUM reading when, the lift is moving?
A. Upward with uniform speed
B. Downward with uniform acceleration
C. In a free fall due to failure of the lift mechanism
D. None of these

Submitted by: Ashfaque Ali Khoso
A train goes past a railway station at a high speed. A young boy standing on the edge of the platform is likely to __________?
A. Remain unaffected
B. Fall away from the train
C. Fall towards the train
D. Fall away from or towards the train depending upon the speed
When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________?
A. Visible
B. Transparent
C. Invisible
D. opaque
E. None of these
A satellite moving round the earth with a uniform speed has____________?
A. An accelerated motion
B. No acceleration at all
C. Uniform acceleration
D. Uneven acceleration
The average speed of a moving object during a given interval of time is always:
A. the magnitude of its average velocity over the interval
B. the distance covered during the time interval divided by the time interval
C. one-half its speed at the end of the interval
D. its acceleration multiplied by the time interval
E. one-half its acceleration multiplied by the time interval

Submitted by: Mansoor Ul Haque
To measure the speed of an approaching car a police officer shines?
A. light waves on it
B. microwaves on it
C. radio waves on it
D. ultra high frequency waves on it

Submitted by: Abid Hussain
Fog that most often forms as warm rain falls into a cold layer of surface air is called ______________?
A. Radiation fog
B. Evaporation (mixing) fog
C. Advection fog
D. Upslope fog

Submitted by: Mansoor Ul Haque
Water is heated in a kettlE. The inside water is heated by convection. A person sitting near the fire receives heat by ________?
A. Conduction
B. Convection
C. Radiation
D. Reflection
E. None of these
A bird sitting on a high tension electric wire does not get electrocuted because:
A. Sit has high resistance
B. the body is earthed
C. it does not form a closed path for the flow of current
D. its feet are good insulators

Submitted by: Abid Hussain