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PHSC final exam 2024 Actual Questions and Answers Fully Solved 100% | Complete Solution
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PHSC final exam 2024 Actual Questions and Answers Fully Solved 100% | Complete Solution
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PHSC final exama body undergoes acceleration whenever there is a change in its
a. speed
b. velocity
c. direction
d. all - correct answer-d. all
a job can be done slowly or quickly. both may require the same amount of work, but different
amounts of
a. energy
b. momentum
c. power
d. impulse - correct answer-c. power
a mole of iron atoms contains how many molecules
a. 26 million billion
b. 56 million billion
c. 6.02 x 10^23
d. 56 billion trillion - correct answer-c. 6.02 x 10^23
a motor and a generator are
a. similar devices
b. very different devices with different applications
c. forms of transformers
d. energy soures - correct answer-a. similar devices
a nucleus with an atomic number of 44 and a mass number of 100 much have
a. 44 neutrons
b. 56 neutrons
c. 100 neutrons
d. none - correct answer-b. 56 neutrons
a quantum of light I called a
a. proton
b. photon
c. both
d. neither - correct answer-b . photon
, a sheet of paper can be quickly withdrawn from under a soft drink can without the can
toppling bc
a/ gravity pull harder on the can than on the paper
b.the can has weight
c. the can has inertia
d. none of the above - correct answer-c. the can has inertia
a step up transformer in an electrical circuit can step up
a. voltage
b. energy
c. both a and b
d. neither a nor b - correct answer-a. voltage
a tentative scientific explanation which may or ay not be rejected upon further
experimentation is called
a. theory
b. principle
c. hypothesis
d. model - correct answer-hypothesis
an electric field is induced in any region of space in which
a. a magnetic field changes with time
b. magnetic fields orientation is at right angles to the electric field
c. the accompanying electric field undergoes changes in time
d. all - correct answer-a. a magnetic field changes with time
an electromagnet can be made stronger by
a. increasing the number of turns of wire
b. increasing the Current in the coil
c. both a and b
d. none - correct answer-c. both a and b
any material that is made up of only one type of atom is classified as
a. substance
b. molecularly pure
c. an element
d. an isotope - correct answer-c. an element
as to why electrons orbit in only certain orbits a compelling explanation views electrons as
a. particles that morph into waves
b. standing waves
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