G8 STEM Q3 Reviewer 2024

Which can prevent junkbot from moving or make it slow? Write all correct answers.

• a. the robot is too heavy
• b. the motor is not firmly attached to the robot's body.
• c. there too much friction between your robot and the ground
• d. the motor spins on reverse direction

In STEM we learn skills that we can use in our lifetime. Choose the letter/s of all the correct answers.

• a. communicate
• b. think critically and solve problems
• c. work on your own
• d. highly individualism

Which STEM process that refers to defining the problem?

• a. Ask
• b. Imagine
• c. Plan
• d. Improve

A simple circuit consists of a current source, ________ and a ______.

• a. wire
• b. battery
• c. load
• d. conductors

Which is a common power source?

• a. battery
• b. wire
• c. motor
• d. none of the above

This refers to a substance or material that allows electricity to flow through it.

• a. load
• b. switch
• c. conductor
• d. insulator

What do you call a component or portion of a circuit that consumes electric power, such as electrical appliances and lights?

• a. switch
• b. source
• c. load
• c. none of the above

What do you call an electrical component that can disconnect or connect the conducting path in an electrical circuit?

• a. switch
• b. source
• c. load
• d. none of the above

What is the purpose of attaching a cork or eraser to the shaft of the motor?

• a. its weight that rotates causes the entire robot to vibrate with it
• b. it makes the robot heavy
• c. both a and b
• d. none of the above

It is created by the movement of electrons, or the charge.

• a. voltage
• b. current
• c. resistance
• d. electric energy/electricity