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- @In air beta particles have a range of about:
- 1m
- 1mm
- 1cm
-
- @Red and Blue light mixed together makes:
- Magenta
- Indigo
- Cyan
-
- @Which one of the following statements about the wavelength of an e.m wave is incorrect
- It's measured from the top of one wave to the bottom of the next
- It's measured from the top of one wave to the top of the next
- It's from the middle of one wave to the middle of the next
-
- @The Sun causes sharp shadows because:
- Its light is parallel
- Its light is diverging
- Its light is converging
-
- @An object, viewed through one of these lenses, would look smaller. Which lens?
- #lens2
- Lens z
- Lens y
- Lens x
-
- @What is the unit of frequency?
- Hertz
- Metre
- Metres per second
-
- @A transformers secondary coil has 1A and 120V. If the primary coil has 240V, what is the current?
- 0.5A
- 1A
- 10A
-
- @Some substances are insulators because:
- they do not have any free moving electrons
- they don't have any electrons
- electrons are easily lost by the substances
-
- @If you want more current to flow in an electrical circuit, then you must:
- Reduce the resistance
- Increase the resistance
- Keep changing the resistance
-
- @Another name for beams of electrons is:
- Cathode rays
- Microwaves
- X-rays
-
- @What units are work measured in?
- Joules
- Watts
- Newtons
-
- @Acceleration is a vector quantity because:
- it depends on the direction you are going
- the size (value) of the acceleration is important
- because its units are m/s²
-
- @A 5 N weight makes a spring stretch by 25cm. To make the spring stretch by just 5cm the weight you would use would be:
- #for1
- 1 Newton
- 25 Newtons
- 5 Newtons
-
- @Alpha particles are:
- Atomic nuclei
- Electrons
- Electromagnetic waves
-
- @Which of these velocity time graphs was produced by an object that was slowing down?
- #mot2
- Graph y
- Graph x
- Graph z
-
- @The diagram shows a piston in a container. If the substance inside the container was a liquid then the piston:
- #pre1
- Would not move whatever force was applied
- Could move down easily
- Would move easily at first, but then become difficult
-
- @The units of a turning force are:
- Nm
- Nm³
- Pa
-
- @Which one of the following is a scalar?
- Power
- Velocity
- Acceleration
-
- @When you put your hands in front of a fire they feel warm because of:
- Radiation
- Conduction
- Convection
-
- @If boiling water is poured onto a frozen windscreen in winter it shatters. This is because:
- The glass expands very rapidly
- The glass contracts quickly
- The ice melts, turning into steam
-
-
- @The temperatures inside two rooms are 12°C and 20°C. From this, what can be said about the speeds of the air molecules in each room?
- They travel faster in the 20°C room
- There is not enough information to make a comment
- Since both contain air molecules then they must be travelling at the same speed
-
- @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
-
- @Which unit is used to measure potential difference?
- Volt
- Ampere
- Watt
-
- @What three colours, when mixed together, produce white?
- Red, green and blue
- Green, yellow and cyan
- Red, green and yellow
-
- @Clear glass is:
- Transparent
- Opaque
- Translucent
-