Answer the question.
Then: fire, Now: radiator, electric heating
Answer the question.
With fire.
Is this a simple or complex machine?
Complex
Simple or complex machine? What is it called?
Complex/ helicopter
Answer the question.
They are wedges
Answer the question.
They are inclined planes.
Answer the question.
Wheel
Simple or complex? What is it called?
Complex/ plane
Which of these uses a pulley?
The well and the elevator.
What is this?
Pulley
What is this? Simple or complex?
Ramp/ simple
What is this? Simple or complex?
Wheel/simple
The well uses a pulley, true or false?
True
Answer the question.
All of them.
Answer the question.
The satelite.
Answer the question.
Fire
