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waec-physics-2019

5 followers

11 questions


The vacuum in thermoflask reduces heat loss resulting from ...
The vacuum in thermoflask reduces heat loss resulting from A. radiation only B.conduction and convection only C. radiation and convec...
1 year ago 1 answer(s) 3 votes


A loaded spring is set in simple harmonic motion. The force ...
A loaded spring is set in simple harmonic motion. The force that tends to restore the load to its equilibrium is A. adhesive B. elastic ...
1 year ago 1 answer(s) 3 votes


Which of the following waves is not mechanical A. Waves in ...
Which of the following waves is not mechanical A. Waves in pipes B. Water waves C. Radio waves D.  Sound waves
1 year ago 1 answer(s) 3 votes


A body of mass 2kg is released from a point 100m above the g...
A body of mass 2kg is released from a point 100m above the ground. Calculate its kinetic energy 80m from the point of release A. 1600J B. 900...
1 year ago 1 answer(s) 4 votes


Which of the following instruments can be used to computer t...
Which of the following instruments can be used to computer the magnitudes of charges on two given bodies A. Electrophorus B. Ebonite rod ...
1 year ago 1 answer(s) 3 votes


The induced current in a coil always flows in a direction so...
The induced current in a coil always flows in a direction so as to oppose the change that causes it. This statement is known as A. Coulomb&rs...
1 year ago 1 answer(s) 2 votes


In an elastic collision, momentum is conserved as well as A...
In an elastic collision, momentum is conserved as well as A. Velocity B.  Kinetic energy C. potential energy D. speed
1 year ago 1 answer(s) 2 votes


The time rate of increase in velocity is called A. Force B...
The time rate of increase in velocity is called A. Force B. Momentum C. Acceleration D. Speed
1 year ago 1 answer(s) 3 votes


Which of the following quantities is a vector?  A. Vol...
Which of the following quantities is a vector?  A. Volume  B. Momentum  C. Faraday’s Law  D.  ...
1 year ago 2 answer(s) 2 votes


A device consumes 100W of power when connected to a 120V sou...
A device consumes 100W of power when connected to a 120V source. calculate its resistance A. 12Ω Ω B. 12, 000 Ω C. ...
1 year ago 1 answer(s) 2 votes