Computing Creative Design and Innovation – Grade 8 Checkpoint 3

Q1. What is the name of a path that allows an electrical current to flow? (3 marks)

• a) Sensor
• b) Artificial Intelligence
• c) Circuit
• d) Gravity

Q2. Which component limits the flow of current in a circuit? (3 marks)

• a) Buzzer
• b) Wire
• c) Battery
• d) Resistor

Q3. What does a fuse do? (3 marks)

• a) It measures the voltage and current in a circuit.
• b) It gives power to the circuit.
• c) It stops the current in a circuit when it gets too high.
• d) It allows you to turn a circuit on or off.

Q4. Look at this circuit . What will turn on when the battery is connected? (3 marks)

• a) The buzzer

• b) The red LED and the blue LED

• c) The buzzer and the red LED

• d) The buzzer and the blue LED

Q5. What is the name of the force that happens when two objects rub against each other? (3 marks)

• a) Applied force
• b) Gravity
• c) Friction
• d) Normal force

Q6. Which part of a robot processes inputs and produces outputs? (3 marks)

• a) Manipulator
• b) Effector
• c) Sensor
• d) Controller

Q7. What is the name of this device? (3 marks)

• a) Diode

• b) Potentiometer

• c) LED

• d) Resistor

Q8. Which sensor can input images and is used in computer vision? (3 marks)

• a) Camera
• b) Distance sensor
• c) Humidity sensor
• d) Temperature sensor

Q9. What is the name of the tool at the end of a robot's arm? (3 marks)

• a) An effector
• b) A manipulator
• c) A controller
• d) A power supply

Q10. Which device is used to measure the current and voltage in a circuit? (3 marks)

• a) Potentiometer
• b) Digital Multimeter
• c) Transistor
• d) Amplifier