Q3 Mechanics and electronics DT GCSE Eduqas

What is the name of the following component?

• resistor
• light dependent resistor
• variable resistor
• thermistor

A thermistor is used in a circuit to control a piece of equipment automatically. What might this circuit be used for?

• lighting an electric lamp as it becomes darker
• ringing an alarm bell if a locked door is opened
• switching on a water heater at a pre-determined time
•  turning on an air conditioner when the temperature rises 

Which electrical component would not normally be found in a battery-operated torch (flashlight)? 

• A
• B
• C
• D

Which type of circuits are these sentences referred:

• Current has only one path to flow
• Same current flows for each resistor

• Series

• Parallel

• Mix

To make things move, you need a −

• force.
• strong magnet.
• metal object.
• helper.

Bike brakes use what kind of motion?

• Linear

• Reciprocating

• Oscillating

• Rotating

This toy changes rotational motion to what?

• Oscillating

• Reciprocating

• Linear

An arrow uses what kind of motion?

• Linear

• Reciprocating

• Oscillating

• Rotating

What is gear B known as?

• Driver

• Interlock

• Idler

• Driven

A metronome uses what kind of motion?

• Linear

• Reciprocating

• Oscillating

• Rotating