@What current flows if 30 coulombs of charge are moved in 10s?
3 A
30 A
300 A

@An experiment produces an a.c output, measured on an oscilloscope. The root-mean-square (rms), or effective value, is:
#scope1
slightly less then the amplitude of the trace shown
exactly the same value as the amplitude of the wave
dependent on the number of waves shown on the screen

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

@If a ticker tape is made by an object which is accelerating, then the dots:
Get further apart
Remain a constant distance apart
Gradually get closer together

@A trolley has two forces acting on it. If f1=12 N and f2=14 N then the trolley:
#for4
Moves to the left with a 2 N force acting on it
Moves to the right with a 26 N force acting on it
Moves to the right with a 2 N force acting on it


@If a car travels at 80 kph, how long will it take to travel 100 km?
75 minutes
1.25 minutes
48 minutes

@For aircraft, at high altitudes, which one of the following is correct?
The pressure inside the cabin is greater than that outside
The pressures inside and out must be exactly the same
There is greater pressure outside the aircraft than inside

@For equilibrium to occur in turning forces, which one of the following must be true?
The clockwise moment equals the anticlockwise moment
The clockwise moment is just larger than
The clockwise moment must be zero

@Which one of the following is a vector?
Velocity
Density
Speed

@A metal spoon in a hot drink soon becomes warm because of:
Conduction
Radiation
Convection

@A fridge works on the principle of:
Evaporation
Convection
Sublimation

@Liquids expand when heated:
More than solids
More than gases
The same as solids

@Since solid glass sinks in water, what can you say about the density of glass?
It is greater than water
It's less than water
It is less than the density of the surrounding air

@Which one of the following produces the least amount on ionisation?
Gamma rays
Beta particles
Alpha particles

@Which unit is used to measure power?
Watt
Joule
Coulomb

@Which combination of colours is in the correct order for a spectrum?
Orange, yellow, green and blue
Red, yellow, green and violet
Yellow, orange, blue and violet

@Which one of the following colours has the longest wavelength?
Red
Blue
Green

@Which lens is a converging lens?
#lens2
Lens y
Lens x
Lens z

@What is ultra-sonic sound?
Sound waves of a very high frequency
Very quick moving sound waves
Long wavelength sound waves

@What device is used to measure the flow of current?
Ammeter
Voltmeter
Thermocouple

@If a current flows through a thin wire, which of the following effects are produced?
Heat & a magnetic effect
A magnetic field
Heat

@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

@Which one of the following statements about electrons is correct?
They have a negative charge
They have no charge
They have a small positive charge

@1 Watt is:
The rate of using energy at a rate of 1 Joule per second
Moving 1 Kg a distance of 1 m
Lifting a 1Kg mass up 1 m in 1 minute

@An object, deep in space, moves at a constant velocity because:
There are no forces acting
Gravity pulls it
It is weightless
