@When a liquid evaporates, what other effect might you notice?
The liquid left behind is cooler
The liquid left behind expands
The liquid left behind is not changed in  any way

@Bridges are sometimes built with one end on a roller because:
Hot weather makes them expand
Strong winds cause them to move
They do not have to be made so accurately

@The energy an object has because of its height is called:
Potential energy
Kinetic energy
Displacement energy

@The following radiations were put through a magnetic field. Which is in the corect order ofincreasing deflection?
Gamma, alpha and beta
Alpha, beta and gamma
Beta, gamma and alpha

@What is the unit used to measure the work done by a force?
Joule
Watt
Newton

@How many colours are there in the spectrum?
Seven
Eight
Six

@Shadows are caused because:
Light travels in straight lines
All objects block light
Light can be reflected

@A person sits on the edge of a swimming pool, looking into the water at the bottom of the pool. The depth of the pool looks, to the person:
Shallower than it really is
Deeper than it really is
Exactly the same depth, wherever they look

@Which of the following is true?
Sound travels faster in water than in air
Sound does not travel through water
Sound travels slower in water than in air

@Which one of the symbols shown is a thermistor?
#cir2
Symbol 3
Symbol 1
Symbol 2

@Transformers change:
One a.c current into another a.c current
A d.c current into an a.c current
An a.c current to a d.c current

@The electroscope is charged. As a charged rod is brought near the metal cap (y) the leaf (x) falls. This shows:
#escope
the rod has an opposite charge to the electroscope
the electroscope is losing charge
the electroscopes charge must be the same as the rods

@If one ampere is flowing through a circuit then
1 coulomb is flowing each second
There is 1 ohm of resistance in the circuit
Each coulomb carries 1 joule of energy

@Electrons are emitted by:
Cathode
Anode
X-plates

@What units are work measured in?
Joules
Watts
Newtons

@A ticker tape is produced where the dots are evenly spaced. This means the object was:
Moving at a constant velocity
Accelerating
Stationary

@Which one of the following is correct
Mass never changes, but weight can vary
Mass and weight never change
Mass changes, but weight always remains the same

@Which one of the following is not magnetic?
Mercury
Nickel
Cobalt

@The diagram shows four velocity-time graphs. Which is the correct shape for an object moving at a constant velocity?
#mot2
Graph w
Graph z
Graph x

@In a liquid pressure does NOT depend on which one of the following?
Area
Density of liquid
Gravity

@If a person wanted to loosen this nut, where would  be the best place and distance to apply a force?
#tur1
At x
At w
At z 

@Liquids cool after evaporation because:
only slower moelcules with less energy are left behind
all the molecules left behind speed up
the molecules left behind get smaller

@Which one of the following (if they are all exactly the same size) expands the most when heated?
Copper
Brass
Invar

@10 cm of glass has a mass of 25g. What is the density of glass?
2.5 g/cm
250 g/cm
0.4 g/cm

@How are the air molecules inside a hot oven different to those in the kitchen?
They are moving faster
They are larger
They are warmer
