alleryStart learning →A simple machine is a device that can change a force's
Amaterial or colour
Bdirection or size
Cmass or volume
Dweight or heat
Answer & Solution
Correct answer: C. mass or volume
Simple machines such as levers and pulleys change the direction or the size of the force we apply.
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?