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Unit 10
Test Description: -
Instructions: Answer all questions to get your test result.
1) What wave term is the distance between two crests?
A
Wavelength
B
Amplitude
C
Period
D
Frequency
2) What wave term is given to the number of cycles per second?
A
Frequency
B
Amplitude
C
Period
D
Wavelength
3) Describe the frequency of a gamma wave.
A
Medium frequency
B
Low frequency
C
High frequency
4) Describe the energy of a gamma wave.
A
Low energy
B
High energy
C
Medium energy
5) Which wave must transmit through a medium?
A
Electromagnetic waves
B
Mechanical waves
6) Which wave can transmit through a vacuum?
A
Mechanical waves
B
Electromagnetic waves
7) What large body in our Solar System emits a ton of electromagnetic waves?
A
Moon
B
Earth
C
Jupiter
D
Sun
8) What is the energy process (reaction) in the Sun?
A
Nuclear Fusion
B
Nuclear Fission
9) What is the energy process (reaction) in a nuclear power plant?
A
Nuclear Fission
B
Nuclear Fusion
10) What part of a star's lifecycle gives off the most electromagnetic radiation?
A
Supernova
B
White Dwarf
C
Blackhole
D
Neutron Star
11) What is the critical element to achieve a supernova?
A
Hydrogen (H)
B
Oxygen (O)
C
Iron (Fe)
D
Helium (He)
12) How can you decrease potential energy
A
All of the above
B
Lower the height
C
Lower the mass
D
Lower the gravitational field
13) How can you increase kinetic energy?
A
All of the above
B
Increase velocity
C
Increase mass
14) What is kinetic energy when velocity is 0 m/s?
A
KE less than 0
B
KE greater than 0
C
KE equals 0
15) Calculate efficiency when work output is 4 J and work input is 10 J.
A
50%
B
20%
C
40%
D
30%
16) Which form of energy represents fuel burning through a reaction?
A
Chemical energy
B
Potential energy
C
Kinetic energy
D
Thermal energy
17) What is moving energy?
A
Thermal energy
B
Kinetic energy
C
Potential energy
D
Chemical energy
*select an answer for all questions
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