Standard Grade Physics Telecommunication
6 Questions
| Attempts: 954
A quiz for people studying physics at standard grade level
Questions and Answers
- 1.When a wave travels, what does it carry from place to place?
- A.
Copper
- B.
Signals
- C.
Electricity
- D.
Energy
- E.
UHF
- 2.A wave machine creates 45 waves per minute in a swimming pool. The waves are 2.25 metres long. What is the freqency of the waves?
- A.
10 Hz
- B.
20 Hz
- C.
30 Hz
- D.
40 Hz
- E.
50 Hz
- 3.What symbol represents wavelength?
- A.
π
- B.
Σ
- C.
λ
- D.
ν
- E.
D
- 4.Why can you see lightning before you hear thunder?
- A.
Because lightning happens first
- B.
Because of magic
- C.
Because the speed of light is faster than the speed of sound
- D.
Because you are slighty deaf
- E.
All of the above
- 5.What is the period of a wave with a freqency of 34 Hz?
- A.
0.103s
- B.
1.031s
- C.
0.03s
- D.
0.1213s
- E.
0.893s
- 6.A wave with a freqency of 4500 Hz has a length of 3.5cm. What speed is it travelling at?
- A.
275.5 m/s
- B.
23.4 m/s
- C.
157.5 m/s
- D.
10923 m/s
- E.
89.06 m/s
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