APDL Eductation Resources/APDL Eductation Resources.iso/programs/games/quiz/mc_phys/Tests_2/Mixture2

Text File | 1994-09-04 | 3.4 KB | 133 lines

10 cm³ of glass has a mass of 25g. What is the density of glass?
2.5 g/cm³
250 g/cm³
0.4 g/cm³

@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

@Which form of radiation has no charge?
Gamma
Alpha
Beta

@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

@Which one of the following statements is NOT correct?
E.m waves travel very slowly
E.m waves all travel at the same speed in space
E.m waves all have different wavelengths

@Clear glass is:
Transparent
Opaque
Translucent

@Which lens would be found in glasses worn by someone who is short sighted?
#lens2
Lens z
Lens y
Lens x

@Ships use pulses of sound (sonar) to find the depth of water below them. The system used is:
Sending a pulse and timing how long it takes to return
Sending several pulses and seeing how many return
Gradually sending weaker pulses until they can just be detected

@A diode contains which of the following?
An anode and a cathode
An anode only
A base, collector and emitter

@Electrical power is sent around the country by the National Grid. Very high voltages are used because:
energy losses are kept to a minimum
high currents need to be generated
large distances have to be covered

@Two strips are brought together, and the strip hung on string moves away from the other strip. This shows:
#rod
the rods must have the same charge on them
the rods have opposite charges
neither rod has a charge

@Metals are good conductors because they:
have many free moving electrons
their atoms can vibrate
they are strong

@An oscilloscope trace can be pulled left or right by applying a p.d to:
X-plates
Y-plates
Grid

@What does the Law Of Conservation Of Energy say
Only the form of energy can be changed
Energy can be created and destroyed
Energy can only be created

@What is the name of the acceleration force that keeps us on the ground?
Gravity
Electrostatic
Air resistance

@Weight is different to mass because:
it changes but mass doesn't
it remains constant no matter where you are
it does not depend on gravity

@Shoes with stiletto heels are more likely to damage a wooden floor because:
the heel point exerts a high pressure
frictional forces are increased
the person walking is not stable and wobbles slightly

@When forces balance exactly this is called:
Equilibrium
Reaction
Inertia

@Which one of the following is a vector?
Momentum
Time
Power

@A metal radiator feels warm when you touch it. This is due to:
Conduction
Convection
Radiation

@A burn from steam is worse than a burn from boiling water because:
The temperature of steam can be more than 100°C
Steam is a gas
Steam molecules move more slowly

@If you try and squeeze a solid, such as stone, you have little effect. This is because:
repulsive forces within the substance act
hydrogen bonding takes place
molecules of the substance 'flow' over each other, absorbing the force

@Which one of the following is also an electromagnetic wave?
Gamma rays
Alpha particles
Beta particles

@What unit is used to measure the wavelength of a wave?
Metre
Hertz
Metres per second

@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