11Newton's first law of motion is also called the law of:AAccelerationBMomentum conservationCInertiaDGravitationView AnswerDiscussWorkspaceReportSaveEasy
12A convex lens is also called a:AConverging lensBCylindrical lensCDiverging lensDPlane lensView AnswerDiscussWorkspaceReportSaveEasy
13Sounds with frequencies above 20,000 Hz are called:ASupersonicBAudibleCUltrasonicDInfrasonicView AnswerDiscussWorkspaceReportSaveEasy
14A body is thrown upwards. At its highest point, its:AVelocity is zero but acceleration is gBVelocity and acceleration are both zeroCAcceleration is zeroDVelocity is maximumView AnswerDiscussWorkspaceReportSaveMedium
15Which law states that every action has an equal and opposite reaction?ANewton's second lawBNewton's third lawCNewton's first lawDLaw of gravitationView AnswerDiscussWorkspaceReportSaveEasy