A flag is raised by pulling a rope that runs over a wheel at the top of a pole. This wheel is a
Apulley
Bwedge
Cscrew
Dlever
Answer & Solution
Correct answer: A. pulley
A grooved wheel carrying a rope is a pulley, and it lets us pull down to lift the flag up.
Keep practising Force and energy
Browse all Force and energy questions for Olympiad (Class 5), or explore more Science topics.
Related questions
A child on a swing stops for an instant at the highest point. At that instant her energy iA ball bounces lower each time. Where has its missing energy gone?Which statement agrees with the law of conservation of energy?As a ball falls, position energy drops, motion energy rises and the total is constant. ThiThe Earth's climate and living things are driven mainly by radiant energy from theSunlight carries which form of energy?Food and fuel store energy that is released in chemical reactions. This is calledA stretched rubber band is held ready to be released. Which form of energy does it store?