Types of force - Jamb Physics Past Questions and Answers

Question 1:

• JAMB 1985

Which of the following is NOT a force?

A. Friction
B. Tension
C. Upthrust
D. Weight
E. Impulse

Question 2:

• JAMB 1987

An elevator of mass 4800kg is supported by a cable which can safely withstand a maximum tension of 60 000N. The maximum upward acceleration the elevator can have is

A. 2.5ms^-2
B. 5.0ms^-2
C. 7.5ms^-2
D. 10.0ms^-2

Question 3:

• JAMB 1997

The fig above shows a block of mass m sliding down a rough inclined plane QP at angle \( \theta \) . The forces acting on the block along QP are

A. Mg sinθ and the normal reaction
B. Mg sinθ and the force of friction
C. Mg sinθ and the normal reaction
D. Mg cosθ and the normal reaction

Question 4:

• JAMB 1998

The force of attraction between two point masses is 10^-4N when the distance between them is 0.18m. If the distance is reduced to 0.06m, calculate the force.

A. 1.1 x 10^-5N
B. 3.3 x 10^-5N
C. 3.0 x 10^-4N
D. 9.0 x 10^-4N

Question 5:

• JAMB 2000

A catapult used to hold a stone of mass 500g is extended by 20cm with an applied force F. If the stone leaves with a velocity of 40m/s, the value of F is

A. 4.0 x 10²N
B. 2.0 x 10³N
C. 4.0 x 10³N
D. 4.0 x 10⁴N