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Physics
Which color has the longest wavelength in visible light
A
Violet
B
Blue
C
Green
D
Red
Correct Answer
D
Physics
The SI unit of pressure is:
A
Pascal
B
Newton
C
Watt
D
Joule
Correct Answer
A
Physics
Atmospheric pressure is measured by
A
Hygrometer
B
Barometer
C
Ammeter
D
Calorimeter
Correct Answer
B
Physics
Heat transfer through direct contact is called
A
0ยฐC
B
10ยฐC
C
32ยฐC
D
100ยฐC
Correct Answer
A
Physics
Which particle has a negative charge?
A
Proton
B
Neutron
C
Electron
D
Positron
Correct Answer
C
Physics
The nucleus of an atom contains:
A
Electrons only
B
Protons and neutrons
C
Neutrons and electrons
D
Protons and electrons
Correct Answer
B
Physics
The SI unit of magnetic field strength (magnetic flux density) is:
A
Weber
B
Henry
C
Tesla
D
Guass
Correct Answer
C
Physics
Which device converts electrical energy into mechanical energy
A
Generator
B
Transformer
C
Motor
D
Battery
Correct Answer
C
Physics
A generator converts:
A
Electrical energy into mechanical energy
B
Mechanical energy into electrical energy
C
Heat into light
D
Chemical energy into heat
Correct Answer
B
Physics
Ohm's law is represented by:
A
V = IR
B
P = VI
C
F = ma
D
T V
Correct Answer
A