ESAT Friction and Circular Motion — practice questions
22 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice ESAT Friction and Circular Motion in the app →A crate slides across a floor and slows down. The force acting against its motion is:Two blocks rest against each other without moving. The friction between them is described as:A book is already sliding down a ramp. The friction acting on it is now described as:You push a heavy crate harder and harder but it stays put. Static friction rises to match your push up to its:The magnitude of maximum static friction is the coefficient of static friction times the:For most pairs of surfaces, the coefficient of kinetic friction compared with the static one is:Friction arises partly because surfaces that look flat are actually:A car turns a corner. The centripetal force acting on it points towards the:On a level road, the force that supplies the centripetal force turning a car is:For a given mass and speed, a larger centripetal force produces a radius of curvature that is:Centripetal force is perpendicular to velocity, which is why the resulting circular motion is:Race tracks tilt their curves inward so that the slope of the road helps. Such a curve is:On a banked curve, increasing the banking angle lets a vehicle take the curve:For ideal banking, the centripetal force is supplied entirely without any:A passenger feels thrown sideways when the car turns. That apparent push is an inertial or:The outward pull a rider seems to feel on a merry-go-round is mistakenly called the:Like friction, the drag force on a moving object always acts to oppose its:At everyday speeds, drag force is proportional to the speed of the object raised to the power:Drag also depends on the density of the fluid, the drag coefficient and the object's:A 75 kg skydiver falling head first reaches a terminal speed of roughly:Spreading out into a spread-eagle position drops that terminal speed to about:Two masses hang from a rope over a light frictionless pulley. Along that rope the tension is: