4. hypothesizing - Bahasa Inggris Untuk Fisika UNNES Nurul Faela Shufa

1. HYPOTHESIZING

2. INTRODUCTION
A hypothesis is a tentative or temporary
solution to a scientific problem or an explanation
for why something happens.
Although a hypothesis usually develops
from the intuition of the scientist, it is based on
observations or facts.

3. A hypothesis does not always prove to be
correct, and it may have to be rejected altogether
or at least revised. Progress involves continually
refining hypotheses as new information comes to
light.

4. Using English To Hypothesize
A hypothesis is a tentative proporsition that
resolves a problem or answer a scientific
question. A theory is a hypothesis that is generally
accepted. However, the words hypothesis and
theory are frequently used interchangeably.

5. Example
Einstein’s states: The speed of light in
vacuum is the same in all inertial frames of
reference and is independent of the motion
of the source.

6. Example
Thus in de Broglie’s hypothesis, the
relationships of wavelength to momentum
and of frequency to energy are exactly the
same for free particles as for photons.

7. Example
The physicist was Niels Bohr (Fig. 39.15), and his
innovation was to combine the photon concept that
we introduced in Chapter 38 with a fundamentally
new idea: The energy of an atom can have only
certain particular values. His hypothesis represented
a clean break from 19th-century ideas

8. Example
In 1900, the German physicist Max Planck succeeded in
deriving a function, now called the Planck radiation law, that
agreed very well with experimental intensity distribution
curves. In his derivation he made what seemed at the time to
be a crazy assumption. Planck assumed that electromagnetic
oscillators (electrons) in the walls of Rayleigh’s box vibrating

9. Example
The Hubble law suggests that at some time in the
past, all the matter in the universe was far more
concentrated than it is today. It was then blown
apart in an immense explosion called the Big Bang,
giving all observable matter more or less the
velocities that we observe today.

10. Example
Albert a michelson and Edward w. Molary
execute the experiment was designed to
determine the velocity of the earth relative
to that of the hypothetical

11. Example
clinton davisson and george thomson for
discovering the diffraction of electrons by
crystal, confirming de brogile hypothhesis

12. Example
Thus in the Robert Boyle hypothesis, the
constant temperature, the product of
pressure and volume of gas is constant.

13. Most hypothesis are stated in the present simple
tense, although it is possible to hypothesize
about something that happened in the past or will
happen in the future. Sometimes a hypothesis is
expressed as a prediction, using the future tense
with will.

14. Reference
University Physics with Modern Physics
Physics and Measurement
Tipler,A.paul.1991.Fisika Untuk Sains dan
Teknik.Jakarta:Erlangga