Annual Examinations For Secondary Schools Physics Worksheet - 2012 Page 2
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12Section A:
This section has 7 questions. Each question carries 10 marks (70 marks).
1.
a.
Underline the appropriate word:
i.
A (scalar / vector) is a physical quantity having size and direction.
(1)
ii.
A (scalar / vector) is a physical quantity having size only.
(1)
b.
Ian walks from home to the supermarket at an average velocity of 0.75 m/s for 2 minutes.
Calculate:
i.
how many seconds are there in 2 minutes,
________________________________
(2)
ii.
the distance between Ian’s home and the supermarket.
________________________________________________________________________________
________________________________________________________________________________
(2)
c.
Ian takes the same time to return home from the supermarket
i.
Does his average speed change?
________
(1)
ii
Does his average velocity change?
________
(1)
iii.
Explain your answers to question (i) and (ii) above.
________________________________________________________________________________
________________________________________________________________________________
(2)
2.
According to the Kinetic Theory, all matter is made up of particles. Complete:
a.
i.
The three states of matter are _____________, _____________ and _____________.
ii.
The particles that make up all matter have _____________ energy and are moving all
the time.
iii.
The energy of the particles decreases as the temperature _____________.
(6)
b.
i.
An iron bar expands when it is _______________.
ii.
An iron bar contracts when it is _______________.
(2)
c.
Underline the correct word within the brackets in the following sentence:
(Evaporation / Expansion) is the change of a liquid from its liquid state to the gaseous or
vapour state without reaching its (melting point / boiling point).
(2)
Physics – Secondary Schools - Track 2 – Form 5 – 2012
Page 2 of 12
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