PHYSICS YEAR 7 2ND TERM
Authored by Michael Eze
Physics
7th Grade
Used 3+ times
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when the amplitude of a sound wave increases?
The loudness does not change.
The loudness decreases.
The loudness increases.
The loudness increases and decreases.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when you ‘twang’ a ruler and move one end over the edge of a table and back?
The sound goes higher as the vibrating length increases
The sound goes lower as the vibrating length increases
The sound goes higher as the vibrating length decreases
The sound goes lower as the vibrating length remain unchanged.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the frequency of a sound when its pitch decreases?
The frequency increases
The frequency increases and then decreases
The frequency decreases
The frequency do not change
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When sulphur is burnt in oxygen what is formed?
a mixture
a compound
an element
None of the above
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these metals are not magnetic?
Gold
Iron
Steel
Nickel
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The loudness of a sound is measured in __________
wavelengths
Pitches
Units
Decibels
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A musical note increases in loudness when ______________
the energy used in producing it increases
the energy used in producing it decreases
the energy used in producing it is random
No energy is used to produce it.
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