Question 1 of 10
10 total questions
A battery provides which type of current?
Explanation Answer: D
A battery produces direct current.
The gravitational force on Earth pulls objects
Asideways
Bdownwards
Cno direction
Dupwards
Explanation Answer: B
Gravity pulls objects downward.
Which of these is the unit of work?
Ajoule
Bohm
Cweber
Dpascal
Explanation Answer: A
Work is measured in joules.
Sound cannot travel through a
Aliquid
Bsolid
Cgas
Dvacuum
Explanation Answer: D
Sound needs a medium; no medium in vacuum.
The opposite of speed is not a physical quantity; which of these is a vector?
Atime
Bspeed
Cvelocity
Ddistance
Explanation Answer: C
Velocity is a vector quantity.
Speed is measured in
Explanation Answer: D
Speed = distance/time, unit m/s.
Which material is a good conductor of electricity?
Arubber
Bwood
Cglass
Dcopper
Explanation Answer: D
Copper conducts electricity.
The instrument used to measure electric current is an
Aammeter
Bbarometer
Cthermometer
Dvoltmeter
Explanation Answer: A
Ammeter measures current.
Energy is measured in
Anewtons
Bohms
Cjoules
Damperes
Explanation Answer: C
Energy unit is the joule.
The unit of force is the
Ametre
Bnewton
Cwatt
Djoule
Explanation Answer: B
Force is measured in newtons.
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