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WorksheetsYear 10 DT Revision - Electronic Systems and Mechanical Devices
Total questions: 15
Worksheet time: 8mins
Which type of motion describes movement backward and forward along a straight path
Oscillating
Reciprocating
Rotary
Linear
A car wheel turning is which type of motion?
Reciprocating motion
Rotary motion
Oscillating motion
Linear motion
Mechanical Advantage is calculated by
Load Force divided by Effort Force
Input Force divided by Output Force
Load minus Effort multiplied by Speed
Effort plus Load divided by Distance
What is the role of the fulcrum in a lever?
Point where effort is applied
Pivot point where the bar rotates
Point that increases mechanical advantage
Point where the load is attached
Which statement best compares first-class and second-class levers for lifting heavy loads?
First-class levers are least useful for control
Second-class levers are best for long-distance lifting tasks
Second-class levers give the most mechanical advantage
First-class levers have biggest distance between load and effort
How does adding pulleys in a block-and-tackle system affect the effort needed to lift?
More pulleys reduce effort required to lift
More pulleys increase effort needed to lift
More pulleys keep effort exactly the same
More pulleys change rope direction only
A cam changes rotary motion into which type of follower motion?
Random vibrating motion
Oscillating motion
Constant circular motion
Reciprocating motion
Which linkage changes rotary motion into oscillating motion?
Crank and slider linkage
Peg and slot linkage
Bell crank linkage
Reverse motion linkage
How do gears in a gear train rotate?
All gears random
In the same direction, accept the last
In opposite directions
All gears same direction
If a system uses four pulleys, how much of the original effort is needed to lift the load?
Double the original effort
One tenth of original effort
One quarter of original effort
One half of original effort
Which best describes the input stage of an electronic system?
The output devices produce sound or light
Power is supplied to components from a battery
Information from sensors enters the system
The microcontroller makes a decision about data
Which device is commonly used to indicate with light?
LDR – Light dependent resistor
Switch – user button control
Thermistor – temperature sensor
LED – Light emitting diode
Which is correct about analogue and digital input?
Analogue: on or off; Digital: variable voltage
Analogue: single value; Digital: continuous spectrum
Analogue: yes or no; Digital: range of values
Analogue: range of values; Digital: yes or no
Which stage does a diamond shape show in a flow chart?
Connector linking two separate charts
Output stage to indicate result
Start of the process before inputs
Decision point handled by a microcontroller
What can a microcontroller do in a circuit?
Providing analogue sensor readings
Supplying electrical power constantly
Acting as a permanent output device
Counting events or timings
