Motion - Jamb Physics Past Questions and Answers

Question 11:

• JAMB 1980

Which of the following statements are true of the law of universal gravitation?

A. Any two bodies attract each other with a force which is proportional to the difference of their masses
B. Any two bodies attract each other with a force which is inversely proportional to the square of the distance between them
C. Any two bodies attract each other with a force which is proportional to the product of their masses and inversely proportional to the square of the distance between them
D. Any two bodies attract each other with a force which is proportional to the square of the distance between them
E. Any two bodies attract each other with a force which is proportional to the sum of their masses

Question 12:

• JAMB 1980

Which of the following statements are true of the law of universal gravitation?

A. Any two bodies attract each other with a force which is proportional to the difference of their masses
B. Any two bodies attract each other with a force which is inversely proportional to the square of the distance between them
C. Any two bodies attract each other with a force which is proportional to the product of their masses and inversely proportional to the square of the distance between them
D. Any two bodies attract each other with a force which is proportional to the square of the distance between them
E. Any two bodies attract each other with a force which is proportional to the sum of their masses

Question 13:

• JAMB 1980

The motion of the moving skin of a talking drum can rightly be described as

A. Translational
B. Random
C. Rotational
D. Oscillatory
E. Transitory

Question 14:

• JAMB 1981

The driver in a motor car, of which the total mass is 800kg and which is traveling at 20ms^-1, suddenly observes a stationary dog in his path 50m ahead. If the car brakes can exert a force of 2000N, what will most likely happen?

A. The car will be able to stop immediately the driver notices the dog
B. The car will stop 3pm after hitting the dog
C. The car will stop 20m in front of the dog
D. The driver will quickly reverse the car
E. The car will stop 5m beyound the dog

Question 15:

• JAMB 1981

A body falls freely under gravity (g = 9.8ms^-2) from a height of 40m on to the top of a platform 0.8m above the ground. Its velocity on reaching the platform is

A. 784ms^-1
B. 80ms^-1
C. 78.4ms^-1
D. 39.2ms^-1
E. 27.7ms^-1