06/12/2019Force (STUDY BY TOPICS JUNIOR CLASS) 0Comments by Gate Academy Welcome to your Force (STUDY BY TOPICS JUNIOR CLASS) NAME EMAIL PHONE NUMBER 1. [ Junior school science (physics) ]A force can changeThe direction of an object, e.g. hitting a tennis ballAny of the aboveThe shape of an object, e.g. sitting on a blowup mattressThe speed of an object, e.g. friction can slow down a car2. [ Junior school science (physics) ]The acceleration due to the Earth's gravity (_____) is the same for all objects near Earth's surface 9.8 m/s²9.2 m/s²6.8 m/s²10.4 m/s²3. [ Junior school science (physics) ]The moment of a force causes an object toStop movingTurn about a fixed pointMove backwardMove forward4. [ Junior school science (physics) ]A (n) ______________ can cause an objects motion to changeUnbalanced forceBalanced forceMassInertia5. [ Junior school science (physics) ]You would NOT use _____ to find the acceleration of an object.Initial speedFinal speedWeightTime6. [ Junior school science (physics) ]This type of force is the support force exerted upon an object that is in contact with another stable object. It acts perpendicular to a surface.GravityNormalTensionMagnetic7. [ Junior school science (physics) ]how many forces are there?13248. [ Junior school science (physics) ]Two equal and oppositely directed forces acting on an object will be in equilibriumWhen they are balanced by a third forceWhen their moments about the same point are equalOnly if they act on the same point on the objectIf they are separated by a distance9. [ Junior school science (physics) ]how many planet do we have in our solar system472910. [ Junior school science (physics) ]how many types of motion are there11. [ Junior school science (physics) ]Jack has a weight of 300 N and sits 2.0 m from the pivot of the see-saw. Jill has a weight of 450 N and sits 1.5 m from the pivot. Who will move down?Both of themNone of themJillJack12. [ Junior school science (physics) ]Mass is measured in what unit?PaKgNN/m13. [ Junior school science (physics) ]A tension force is is the force that is transmitted through a string, rope, cable or wire when it is pulled tight by forces acting from opposite endsFalseTrue14. [ Junior school science (physics) ]___ is the speed of an object and the direction of motion.MassFrictionGravityVelocity15. [ Junior school science (physics) ]Newton's _____ law of motion explains why you may lean sideways in a car if the driver turns a corner too quickly.ThirdFirstPrimarySecond16. [ Junior school science (physics) ]A push or pull is arisedistancefallforce17. [ Junior school science (physics) ]How is speed calculated?Speed= distance × timeSpeed = displacement/ timeSpeed= distance/ timeSpeed= area18. [ Junior school science (physics) ]If there was no gravity, would we weigh anything?NoYes19. [ Junior school science (physics) ]Which of the following is NOT a type of force?MagneticElectrostaticGravitationalHeat20. [ Junior school science (physics) ]What is a force?All of the aboveThe ability to levitate objects like Luke sky-walkerA newtonA push or a pull21 out of 20Time is Up!
