PMR Form 1 tips

PMR Form 1 tips. There are two sections for this examination. One section
consists of 40 objective questions and section two consists of subjective questions.
OBJECTIVE QUESTIONS
1.0 Energy – Biomass, Thermal
- Fossil fuels
- Energy changes
- Radioactive substances
- Wind energy and the turbines. Advantages and disadvantages of
wind energy
- Solar energy – What is it? Where is it used?
- Renewable energy and non renewable energy
- Galvanometer (Go to wikipedia.org to find more)

2.0 Heat – heat and temperature
Factors that determine the temperature and heat of a substance.
- like substance size, density, volume.
Heat transfers – Conduction, Convection and Radiation
Convection where hot air rises and cold air sinks.
Expansion and contraction – the metal ball.
The bimetallic strip(Make sure you know the heat expansion rate
of metals)
- Conductors and insulators of heat. Conductors allow heat to pass
the solid very rapidly (fast) ex. Metals
Insulators prevent heat loss. Ex. Wood, glass
Ivar Aluminium

3.0 Changes in the states of matter

SUBJECTIVE QUESTIONS
- Changes of energy.

- Matters of changes

- Density : remember the formula Density = mass/volume and
don’t forget to write the correct SI units. The denser object
always sinks and the lighter object always floats.

- Pollution and it’s effects. Know all the types of pollution that
exist and the effects that they cause.

- Convection in its natural phenomena. Sea and Land breeze. Be
very careful in this section and remember each of them
carefully. Each section links to the other.

- Energy sources
· Sources and forms are two completely
different things. Sources is where is the
energy from. However, forms are the
energy types that are produced.

- Surfaces – The differences between the heat absorbtion of the
dull coloured and white surface. Look through experiments and
know what is the differences between all the three types of
variables, which is constant, manipulated