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WorksheetsEngineering Principles End of Topic Test (Y9-Y10)
Total questions: 37
Worksheet time: 19mins
What is an alloy?
A mix of two or more elements (often metals)
A type of plastic
A natural rock with no processing
A pure metal with no changes
Which of these materials is an alloy?
Aluminium
Copper
Brass
Zinc
A test that checks how easily a material is scratched measures:
Toughness
Ductility
Elasticity
Hardness
What is a ferrous metal?
A metal that never rusts
A metal that contains iron
A metal made only from copper
A metal that is always light
Which statement about thermoplastics and thermosets is true?
Neither can be heated
Thermosets can be reheated and reshaped many times.
They are exactly the same
Thermoplastics can be reheated and reshaped many times
A piece of material was placed between two supports and a load was added in the middle. The material did not appear to bend, but suddenly shattered. Was this material,
Elastic
Tough
Brittle
Malleable
The sample was replaced with another sample of a different material. When loaded this material bent. The more weight that was added the more it bent. When the weights were removed, it did not return to its old shape. This was because it had,
Been bent for too long
Passed its plastic limit
Passed its elastic limit
Not been annealed
A small weight was dropped unto a sample. It went straight through the sample. Was the sample most likely to be;
Thermoplastic
Card
Aluminium
MDF
What makes a composite material special?
It cannot be shaped
It is always just metal
It only works at high temperatures
It combines materials to get better overall properties
If cog A rotates counter clockwise at 100 RPM Does cog B rotate at? You may find the equation below helpful.
R.P.M of driven cog = Number of teeth on driving gear X R.P.M of driving cog
__________
Number of teeth on driven gear
200 rpm counter clockwise
400 rpm counter clockwise
4 rpm counter clockwise
20 rpm clockwise
Does gear C rotate?
Faster than cog A and in the opposite direction to cog A
At the same speed as cog A and in the same direction?
Slower than cog A in the same direction.
At the same speed as cog A, but in the opposite direction.
If cog A rotates at 10 RPM does cog D rotate at,
40 RPM
100 RPM
160 RPM
200 RPM
If pulley wheel B rotates at 200 RPM how fast does A rotate?
100 RPM
400 RPM
750 RPM
50 RPM
The SI unit of force is:
Watt (W)
Ohm (Ω)
Newton (N)
Volt (V)
Which is a contact force?
Electrostatic force
Magnetism
Friction
Gravity
Which force acts without objects touching?
Magnetism
Normal reaction
Compression
Friction
A bar in compression is being:
Cut across
Squeezed
Twisted
Stretched
Which pair matches a motion type with a correct example?
Oscillating – a straight push
Linear – a turning wheel
Rotary – a spinning drill chuck
Reciprocating – a bike wheel
A lever with mechanical advantage helps you:
Make a load heavier
Create electricity
Lift a load with less effort
Stop all motion
In a simple pulley system, increasing the number of supporting ropes usually:
Increases mechanical advantage
Stops the load moving
Decreases mechanical advantage
Makes no difference
Which statement about gears is correct?
Gears only work in watches
Small driver → big driven gives more torque but less speed
Small driver → big driven gives more speed and more torque
Gears never change speed
A gear wheel added to a gear train to reverse the direction of rotation of the output gear is called a,
Bevel gear
Worm wheel
Idler gear
Jockey wheel
Torsion is best described as:
A sliding force across a surface
A pushing force that squeezes
A twisting force on a material
A pulling force that stretches
Fill in the blank: According to Ohm's Law, voltage (V) is equal to ______ multiplied by resistance (R).
current (I)
power (P)
charge (Q)
capacitance (C)
Which is the correct answer? A light bulb draws 0.5 amps and has a resistance of 20 ohms. It runs on how many volts?
V=IxR
5 volts
1 volt
10 volts
20 volts
A 12 volt battery provides 6 amps to drive a motor. What is the resistance of the motor?
2 Ω
10 Ω
20 Ω
200 Ω
If water falling from a great height down a pipe and produces electricity by turning a turbine, what type of energy is converted into electrical energy?
Kinetic
Potential
Wind
Heat
In which of the circuits below would the bulbs shine the brightest?
Top Left
Top Right
Bottom Left
Bottom Right
Which of the above circuits is a series circuit?
Top Left
Top Right
Bottom Left
Bottom Right
29) What is the total resistance of the resistor network drawn below in ohms?
88 ohms
222 ohms
116 ohms
102 ohms
What is the total resistance of the resistor network drawn below in ohms?
150 Ohms
75 Ohms
125 Ohms
50 Ohms
A resistor is used in a circuit with a light emitting diode, (LED) because?
The light emitting diode would be too bright without one.
The light emitting diode does not draw enough current by its self.
The light emitting diode would burn out without one.
The light emitting diode would be the wrong colour without one.
Which is a renewable energy source?
Wind
Gas
Coal
Oil
A solar panel turns:
Light energy into electrical
Gravity into motion
Sound into heat
Food into fuel
Direct current (DC) is:
Electric current that flows in one direction
Electric current that keeps changing direction
Only found in mains supply
Another name for AC
In a simple circuit, a resistor mainly:
Limits current
Stores charge
Makes light
Acts as a switch
Which is a good safety rule when soldering on a PCB?
Touch the iron tip to test heat
Cool hot solder on your hand
Hold parts by the metal legs while soldering
Keep the iron in a stand and away from your skin
