Pulleys
Answer the questions about pulleys: a) How do they lift the pail of water? b) Which types of pulleys do you see in the video? c) Complete the sentence: "What she is gaining in the force, she is losing in the .................". d) In a pulley system of 3 pulleys, each meter the pail lifts, how may meters does she pull? e) Write 3 examples where systems of pulleys are used nowadays?