IMSU Physics 2020/2021 Model Past Questions

Practice each question, then open it to see the full details.

An object mass 50kg is released from a height of 2m. Find the kinetic energy just before it strikes the ground.

A.250 J
B.1000 J
C.10000 J
D.100000 J

The solar energy comes from ___.

A.nuclear fusion
B.radioactivity
C.the convection of hydrogen to helium
D.the convection of helium to hydrogen

Which of the following instruments has a pure tone?

A.Guitar
B.Vibrating spring
C.Tuning fork
D.Siren

Which of the following devices may be used to convert AC to DC?

A.A rheostat
B.A diode
C.An alternator
D.resistor

A machine whose efficiency is 60% has a velocity ratio of 5. If a force of 500N is applied to lift a load P, what is the magnitude of P?

A.750N
B.4166N
C.500N
D.1500N