Jamb Physics 2004 Past Questions and Answers

Question 26:

• JAMB 2004

I. Jet propelled aircraft
II. Rocket propulsion
III. The recoil of a gun
IV. A person walking
Which of the above is based on Newton's third law of motion

A. I and II only
B. I, II, III, and IV only
C. I and III only
D. I, II and III only

Question 27:

• JAMB 2004

In a hydraulic press , a force of 40N is applied on the effort piston of area 0.4m². If the force exerted on the load piston is 400N, the area of the large piston is

A. 4m²
B. 8m²
C. 2m²
D. 1m²

Question 28:

• JAMB 2004

A 100kg box is pushed along a road with force of 500N. If the box moves with a uniform velocity, the coefficient of friction between the box and the road is

A. 0.4
B. 1.0
C. 0.8
D. 0.5

Question 29:

• JAMB 2004

As the pressure of a fluid increases, its viscosity

A. Decreases
B. Increases
C. Increases then decreases
D. Remains constant

Question 30:

• JAMB 2004

the diagram above shows forces 4N, 6N, 10N and 8N which act at a point O in the directions indicated. the net horizontal force is

A. 13N
B. 17N
C. √3N
D. 7√3N