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Physics
Which quantity is measured in watts?
A
Energy
B
Power
C
Force
D
Pressure
Correct Answer
B
Physics
The momentum of an object is equal to:
A
Mass ร acceleration
B
Mass ร velocity
C
Force ร distance
D
Mass รท velocity
Correct Answer
B
Physics
Which form of energy is stored in a stretched spring
A
Kinetic energy
B
Chemical energy
C
Elastic potential energy
D
Nuclear energy
Correct Answer
C
Physics
Sound cannot travel through:
A
Air
B
Water
C
Steel
D
Vacuum
Correct Answer
D
Physics
The frequency of a sound determines its:
A
Loudness
B
Pitch
C
Speed
D
Energy
Correct Answer
B
Physics
Heat transfer through direct contact is called
A
0ยฐC
B
10ยฐC
C
32ยฐC
D
100ยฐC
Correct Answer
A
Physics
The unit of frequency is:
A
Joule
B
Decibel
C
Tesla
D
Hertz
Correct Answer
D
Physics
A convex lens is also called a:
A
Diverging lens
B
Converging lens
C
Plane lens
D
Cylindrical lens
Correct Answer
B
Physics
Which mirror is commonly used as a rear-view mirror in vehicles?
A
Plane
B
Concave
C
Convex
D
Parabolic
Correct Answer
C
Physics
The splitting of white light into its component colors is called:
A
Reflection
B
Refraction
C
Dispersion
D
Diffraction
Correct Answer
C