Simple Machines
A lever with a 3 m effort arm and 1 m load arm gives what mechanical advantage?
✓ 3 — it multiplies your force by 3×
Circuits
In a series circuit with 3 resistors of 2Ω each, what is the total resistance?
✓ 6Ω — resistances add in series
Structures
What type of force acts to push the two halves of a beam apart lengthwise?
✓ Tension — the beam is being stretched
Robotics
What is the name for a robot component that creates movement or force?
✓ Actuator (e.g. motor, servo, pneumatic)
