Jamb Physics 2010 Past Questions and Answers

Question 6:

• JAMB 2010

A machine of velocity ratio 6 requires an effort of 400 N to raise a load of 800 N through I m. Find the efficiency of the machine

A. 55. 6 %
B. 50.0%
C. 33.3%
D. 22.2%

Question 7:

• JAMB 2010

If a wire 30 cm long is extended to 30.5 cm by a force of 300 N. find the strain energy of wire

A. 0.75 J
B. 7.50 J
C. 75.00 J
D. 750.00 J

Question 8:

• JAMB 2010

In a hydraulic press, the pump piston exerts a pressure of 100 pa on the liquid. what force is exerted in the second piston of cross sectional area 3 m²?

A. 300 N
B. 200 N
C. 150 N
D. 100 N

Question 9:

• JAMB 2010

The accurate measurement of the relative density of a substance in its powdered form is done with a beam balance and

A. A density bottle
B. An eureka can
C. A pipette
D. A burette

Question 10:

• JAMB 2010

A hydrometer is an instrument used in measuring

A. Vapour pressure of a fluid
B. Density of liquid
C. Relative humidity of a liquid
D. Relative density of a liquid