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- @Which one of the following has the most mass?
- Alpha particles
- Beta particles
- Gamma rays
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- @Which unit is used to measure energy?
- Joule
- Watt
- Coulomb
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- @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
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- @What three colours, when mixed together, produce white?
- Red, green and blue
- Green, yellow and cyan
- Red, green and yellow
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- @Which one of the following colours has the longest wavelength?
- Red
- Blue
- Green
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- @A diode contains which of the following?
- An anode and a cathode
- An anode only
- A base, collector and emitter
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- @Which one of the following is not a part of a transformer?
- Relay coil
- Primary coil
- Laminated core
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- @Where abouts is charge found on an object?
- Only on the outside surface
- Only on the inside surface
- Equally on the outside and inside
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- @An electronic component that stores charge is a:
- Capacitor
- Resistor
- Joulemeter
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- @Three types of potential energy are:
- Gravitational, elastic & chemical
- Chemical, friction & heat
- Elastic, kinetic & gravitational
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- @An object accelerates from 30 m/s to 50 m/s in twenty seconds. What is the acceleration?
- 1 m/s
- 0.4 m/s
- 2.5 m/s
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- @When a mass, suspended from a spring, is not moving it is:
- In equilibrium
- Not being pulled by gravity
- Weightless
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- @The slope of a distance-time graph is a measure of:
- Speed
- Acceleration
- Displacement
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- @A dam holds back water. How does the thickness of the dam vary from top to bottom?
- It gets thicker towards the base
- Its wider at the top than at then base
- It must have a constant thickness, otherwise it wouldn't be stable
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- @A turning force depends on two things. These are:
- Force and distance from fulcrum
- Mass and weight
- Gravity and friction
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- @Which of the following is a vector?
- Force
- Mass
- Temperature
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- @When you put your hands in front of a fire they feel warm because of:
- Radiation
- Conduction
- Convection
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- @Liquids cool after evaporation because:
- only slower molecules with less energy are left behind
- all the molecules left behind speed up
- the molecules left behind get smaller
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- @Which of these is in the correct order of increasing expansion rates?
- Solids, Liquids & Gases
- Liquids, Gases & Solids
- Gases, Solids & Liquids
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- @Two, thin, tubes are placed in water as shown. After a few days, what will be seen?
- #capil
- The water in the smaller tube will have risen more than the larger tube
- No change
- Water in the larger tube will have risen much more than the smaller one
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- @If the following were allowed to pass near a charged gold leaf electroscope, which would produce the greatest effect?
- Alpha radiation
- Beta radiation
- Gamma radiation
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- @What is the unit used to measure mass?
- Kilogram
- Newton
- Weight
-
- @White light, passing through a prism, emerges as colours of the spectrum. This is because:
- the colours of the spectrum are slowed down and 'bent' by different amounts
- interference effects cause small amounts of white light to change to different colours
- the white light causes the prism to produce colours of the spectrum
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- @What would be a typical wavelength for microwaves?
- About 10cm
- One millionth of a metre
- Three hundred metres
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- @Clear glass is:
- Transparent
- Opaque
- Translucent
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